Subtract 16/18 from 9/7, Solve 1 2/7

Subtract 16/18 from 9/7

1^st number: 1 2/7, 2^nd number: 16/18

9/7 - 16/18 is 25/63.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 18 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 7 × 18 = 126,
9/7 = 9 × 18/7 × 18 = 162/126
Likewise, for the 2nd fraction, since 18 × 7 = 126,
16/18 = 16 × 7/18 × 7 = 112/126
Subtract the two like fractions:
162/126 - 112/126 = 162 - 112/126 = 50/126
After reducing the fraction, the answer is 25/63

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