Subtract 8/18 from 72/7, Solve 10 2/7

Subtract 8/18 from 72/7

1^st number: 10 2/7, 2^nd number: 8/18

72/7 - 8/18 is 620/63.

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,
72/7 = 72 × 18/7 × 18 = 1296/126
Likewise, for the 2nd fraction, since 18 × 7 = 126,
8/18 = 8 × 7/18 × 7 = 56/126
Subtract the two like fractions:
1296/126 - 56/126 = 1296 - 56/126 = 1240/126
After reducing the fraction, the answer is 620/63
In mixed form: 953/63

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