CBSE > Class 08 > Mathematics | CBSE Board | Homework Help

1/3 and 1/2 ( To make them like fractions) LCM of 3 and 2 is 6 1/3 × 2/2 = 2/6 1/2 × 3×3 = 3/6 Now , 2/6 and 3/6 ( There is only 1 no. between 2/6 and 3/6 , so we will multiply it with any bigger no. to find their equivalent fractions so that we can find multiple numbers between them . Here I am multiplying both the numbers with 10 . Make sure you multiply both the fractions with same number) 2/6 × 10/10 = 20/60 3/6 × 10/10 =30/60 20/60 and 30/60 Therefore, five numbers between 20/60 and 30/60 i.e 1/3 and 2 /3 are 21/60 , 22/60 , 23/60 , 24/60 and 25/60.

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Represent the following rational numbers on number lines. (a) −2/3 (b) 3/4 (c) 3/2

Posted by P.Pooja Prabhakar 3 years, 7 months ago

CBSE > Class 08 > Mathematics

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Calculate the following: (i) -4/5 x 3/7+4/5 x 3/7 (ii) 1/2 x 5/6+1/3 x 1/4

Posted by P.Pooja Prabhakar 3 years, 7 months ago

CBSE > Class 08 > Mathematics

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Calculate the following:

Posted by P.Pooja Prabhakar 3 years, 7 months ago

CBSE > Class 08 > Mathematics

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Find a rational number between 1/2 and 1/3.

Posted by P.Pooja Prabhakar 3 years, 7 months ago

CBSE > Class 08 > Mathematics

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If a = 1/2, b = 3/4, verify the following: (i) a × b = b × a (ii) a + b = b + a

Posted by P.Pooja Prabhakar 3 years, 7 months ago

CBSE > Class 08 > Mathematics

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What properties, the following expressions show? (i) 2/3+4/5=4/5+2/3 (ii) 1/3×2/3=2/3×1/3

Posted by P.Pooja Prabhakar 3 years, 7 months ago

CBSE > Class 08 > Mathematics

1 answers

Aarti Batta 3 years, 7 months ago

1) It shows commutative property of rational numbers under addition . 2) It shows commutative property of rational numbers under multiplication

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2/8+2/78

Posted by Kavya Ojha 3 years, 7 months ago

CBSE > Class 08 > Mathematics

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What is a rational numbers ?

Posted by Karan Bir Singh 3 years, 7 months ago

CBSE > Class 08 > Mathematics

2 answers

Atanu Swopnjit Pallaur 3 years, 7 months ago

The number which written in p/q and pq are integers and q is not equal to 0 is know as rational number

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Raman Kumar 3 years, 7 months ago

A number which is written by p/q and q is not equal to o is called rational numbers

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Additive inverse of 2/8

Posted by Samruddhi Solanki 3 years, 7 months ago

CBSE > Class 08 > Mathematics

4 answers

Atanu Swopnjit Pallaur 3 years, 7 months ago

-2/8

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Shrishti Garg 3 years, 7 months ago

-2/8

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Mohit Prasad Singh 3 years, 7 months ago

-2/8

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M.Vishnu Raghavan 3 years, 7 months ago

-2/8

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A number consists of two digits, whose sum is 9 .if the digit are reversed the new number is 3/8 of the first number .find the number.

Posted by Simran Athghara 3 years, 7 months ago

CBSE > Class 08 > Mathematics

1 answers

Chaman Singh 3 years, 7 months ago

3/8

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-8+-11/-12=-11/-12+(-8)

Posted by Nishant Vijay 3 years, 7 months ago

CBSE > Class 08 > Mathematics

1 answers

Shivam Kumar 3 years, 7 months ago

Commutative property

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Two number are in ratio 8:3 and their sum is 143. Find the numbers?

Posted by Heet Jain 3 years, 7 months ago

CBSE > Class 08 > Mathematics

2 answers

Swapnil Saha 3 years, 7 months ago

8:3=8+3=11. 8/12*143=104. 3/11*143=39

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Shivam Kumar 3 years, 7 months ago

Let the two numbers are in the ratio of 8:3 Ist no. - 8x 2nd no.- 3x ATQ. 8x+3x= 143 11x= 143 X= 143/11 x= 13 Hence, 1st no.= 8x 8*13= 104 2nd no.= 3x 3*13= 39

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A scoter was bought at ₹42,000 .Its value depreciated at the rate of 8%per annum.Find Its value after one year

Posted by Aditya Goyal 3 years, 7 months ago

CBSE > Class 08 > Mathematics

2 answers

Aditya Goyal 3 years, 6 months ago

Ye kya hai

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Aditya Goyal 3 years, 6 months ago

Bbbbbb

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Value of 1 5

Posted by Shubh Jain 3 years, 7 months ago

CBSE > Class 08 > Mathematics

1 answers

Adwitiya Kumar 3 years, 7 months ago

Fifteen

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The sum of the digit of a two digit number is 12.if the new number formed by reversing the digit and s greater than the original number by 18. Find the original number

Posted by Anuj Kumari 3 years, 7 months ago

CBSE > Class 08 > Mathematics

1 answers

Adwitiya Kumar 3 years, 7 months ago

57?

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What should be added to -7/12 to get 5/6

Posted by Aman .. 3 years, 7 months ago

CBSE > Class 08 > Mathematics

2 answers

Avni Bhatnagar 3 years, 7 months ago

The answer is 17/12

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Avni Bhatnagar 3 years, 7 months ago

-17/12 is the answer

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125×40×8×25

Posted by Lavanya Puri 3 years, 7 months ago

CBSE > Class 08 > Mathematics

1 answers

Ashish Kumar 3 years, 7 months ago

1000000

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Sudha is twice as old as garima 10 year ago sudha was 3 times as old as garima find present age of there

Posted by Gurjot Virk 3 years, 7 months ago

CBSE > Class 08 > Mathematics

1 answers

Ansh Koundal 3 years, 7 months ago

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(-2/9×27/-16

Posted by Abhijeet Giri 3 years, 7 months ago

CBSE > Class 08 > Mathematics

1 answers

Bijatri Malakar 3 years, 7 months ago

-2/9 ×27/26 = 3/8

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The number of boys and girls in a class are the ratio 7:5 the number of boys is 8 more than the number of girls what is the total class 10th

Posted by Adhyan Palandurkar 3 years, 7 months ago

CBSE > Class 08 > Mathematics

1 answers

Simran Kashyap 3 years, 7 months ago

750

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The ages of Rahul and haroon are in the ratio 5:7. Four years letter the sum of their ages will be 56 years. What are their present ages

Posted by Adhyan Palandurkar 3 years, 7 months ago

CBSE > Class 08 > Mathematics

2 answers

Atanu Swopnjit Pallaur 3 years, 7 months ago

Rahul age =(5x + 4) Haroon age =(7x + 4) Add two equations = 5x+4 + 7x+4 = 12x + 8 = 56 12x = 56-8 12x= 48 X= 48/12 X= 4 Rahul age is = 5×4 = 20 Haroon age is = 7×4 = 28

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Royal Royals 🚘 3 years, 7 months ago

20,28. Years

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Three consecutive integers add up to 51.what are these integrs

Posted by Amrit Ray 3 years, 7 months ago

CBSE > Class 08 > Mathematics

2 answers

Atanu Swopnjit Pallaur 3 years, 7 months ago

X+X+1+X+2 = 51 3x+3=51 3x=51- 3 3x=48 x=48/3 x=16 Second consecutive number is = x+1 = 16+1 = 17 Third consecutive number is = x+1= 16+2 = 18

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Bijatri Malakar 3 years, 7 months ago

Let First integer be x second be x+1, third be x+2 . Sum of integer = 51 . X +x+1x+2=51 .3x+3 =51. 3x =51-3=48. 3x=48.x =48/3. X = 16. The value of x =16,x+1 =16+1=17, x+2=16+2 =18

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The product of two rational number is -8 . 9 If one of them is 10, find the 3 Other.

Posted by Aadhya Sharma 3 years, 7 months ago

CBSE > Class 08 > Mathematics