Question

Subtract the following: (a)7/22- 9/33 b) 6/8- 4/8​

Answer 1

1 ) 7/22- 9/33 = 0.04545454545

Answer 2

Subtraction of fractions become easy when we make the denominator same or else by cross multiplication.

1. 7/22 - 9/33

= 7 × 33 - 9 × 22/ 33 × 22

= 231 - 198 / 726

= 33/726

= 0.045

2. 6/8 - 4/8

= 6-4/8

= 2/8

= 1/4

= 0.25

Extra information :

When we solve such fractions try to find lcm that is lowest common multiple of denominator which will help us in solving such fraction easily

For example : lcm of 6 and 8

6 × 4 = 24

8 ×3 = 24

Here, 24 is lowest common multiple, make 24 as common denominator and multiple numerators with 3 and 4 accordingly