Subtract 10/7 from 20/8, Solve 2 4/8

Subtract 10/7 from 20/8

1^st number: 2 4/8, 2^nd number: 1 3/7

20/8 - 10/7 is 15/14.

Find the least common denominator or LCM of the two denominators:
LCM of 8 and 7 is 56

Next, find the equivalent fraction of both fractional numbers with denominator 56
For the 1st fraction, since 8 × 7 = 56,
20/8 = 20 × 7/8 × 7 = 140/56
Likewise, for the 2nd fraction, since 7 × 8 = 56,
10/7 = 10 × 8/7 × 8 = 80/56
Subtract the two like fractions:
140/56 - 80/56 = 140 - 80/56 = 60/56
After reducing the fraction, the answer is 15/14
In mixed form: 11/14

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