Question

convert into like fractions
1) 3/4 , 7/9 , 2/5
2)1/7, 2/3, 11/21​

Answer 1

Answer:

1) 3/4 , 7/ 9 , 2/5

LCM of 4,9,5 = 180

3/4 = 3/4 × 45/45 = 135/180

7/9 = 7/9 × 20/20 = 140/180

2/5 = 2/5 × 36/36 = 72/180

Clearly, 135/180 , 140/180 , 72/180 are like fractions.

2) 1/7 , 2/3 , 11/21

LCM of 7,3,21 = 21

1/7 = 1/7 × 3/3 = 3/21

2/3 = 2/3 × 7/7 = 14/21

11/21 = 11/21 × 1/1 = 11/21

Clearly, 3/21 , 14/21 , 11/21 are like fractions.

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