Subtract 21/24 from 35/20, Solve 1 15/20

Subtract 21/24 from 35/20

1^st number: 1 15/20, 2^nd number: 21/24

35/20 - 21/24 is 7/8.

Find the least common denominator or LCM of the two denominators:
LCM of 20 and 24 is 120

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 20 × 6 = 120,
35/20 = 35 × 6/20 × 6 = 210/120
Likewise, for the 2nd fraction, since 24 × 5 = 120,
21/24 = 21 × 5/24 × 5 = 105/120
Subtract the two like fractions:
210/120 - 105/120 = 210 - 105/120 = 105/120
After reducing the fraction, the answer is 7/8

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