ADDING AND SUBTRACTING FRACTIONS PRACTICE QUESTIONS

Problem 1 :

Add :

2/5  +  1/2

Solution :

Problem 2 :

Subtract  3/5  - 1/4

Solution :

Problem 3 :

Subtract   3/7 - 1/2

Solution :

Problem 4 :

Simplify  -1/2 + 3/4

Solution :

Problem 5 :

Simplify 1/10  -  4/5

Solution :

Problem 6 :

Simplify  7/9 + 2/3

Solution :

=  1  4/9

So, the answer is 1  4/9.

Problem 7 :

Find the sum of 1/3 and 2/5.

Solution :

Problem 8 :

The difference between 1/4 and 2/3.

Solution :

Problem 9 :

The number 3 less than 2/3.

Solution :

Problem 10 :

What must 1/5 be increased by to get 2/3 ?

Solution :

Let x be the required number.

1/5 + x  =  2/3

x  =  (2/3) - (1/5)

lcm (3, 5)  =  15

x  =  (10/15) - (3/15)

x  =  (10-3)/15

x  =  7/15

Problem 11 :

What number is 3/4 less than -1  1/2 ?

Solution :

Let x be the required number.

x  =  -1  1/2 - (3/4)

x  =  -(3/2) - (3/4)

x  =  (-6-3)/4

x  =  -9/4

x  =  -2   1/4

So, the required number is -2  1/4.

Problem 12 :

Add 5/6, 3/5 and 1/3.

Solution :

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