Subtract 75/24 from 36/21, Solve 1 15/21

Subtract 75/24 from 36/21

1^st number: 1 15/21, 2^nd number: 3 3/24

36/21 - 75/24 is -79/56.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 24 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 24 × 7 = 168,
75/24 = 75 × 7/24 × 7 = 525/168
Subtract the two like fractions:
288/168 - 525/168 = 288 - 525/168 = -237/168
After reducing the fraction, the answer is -79/56

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