Subtract 10/35 from 21/12, Solve 1 9/12

Subtract 10/35 from 21/12

1^st number: 1 9/12, 2^nd number: 10/35

21/12 - 10/35 is 41/28.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 35 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 12 × 35 = 420,
21/12 = 21 × 35/12 × 35 = 735/420
Likewise, for the 2nd fraction, since 35 × 12 = 420,
10/35 = 10 × 12/35 × 12 = 120/420
Subtract the two like fractions:
735/420 - 120/420 = 735 - 120/420 = 615/420
After reducing the fraction, the answer is 41/28
In mixed form: 113/28

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