Subtract 9/72 from 56/35, Solve 1 21/35

Subtract 9/72 from 56/35

1^st number: 1 21/35, 2^nd number: 9/72

56/35 - 9/72 is 59/40.

Find the least common denominator or LCM of the two denominators:
LCM of 35 and 72 is 2520

Next, find the equivalent fraction of both fractional numbers with denominator 2520
For the 1st fraction, since 35 × 72 = 2520,
56/35 = 56 × 72/35 × 72 = 4032/2520
Likewise, for the 2nd fraction, since 72 × 35 = 2520,
9/72 = 9 × 35/72 × 35 = 315/2520
Subtract the two like fractions:
4032/2520 - 315/2520 = 4032 - 315/2520 = 3717/2520
After reducing the fraction, the answer is 59/40
In mixed form: 119/40

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