Subtract 5/8 from 36/21, Solve 1 15/21

Subtract 5/8 from 36/21

1^st number: 1 15/21, 2^nd number: 5/8

36/21 - 5/8 is 61/56.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 8 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 21 × 8 = 168,
36/21 = 36 × 8/21 × 8 = 288/168
Likewise, for the 2nd fraction, since 8 × 21 = 168,
5/8 = 5 × 21/8 × 21 = 105/168
Subtract the two like fractions:
288/168 - 105/168 = 288 - 105/168 = 183/168
After reducing the fraction, the answer is 61/56
In mixed form: 15/56

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