Subtract 21/84 from 56/5, Solve 11 1/5

Subtract 21/84 from 56/5

1^st number: 11 1/5, 2^nd number: 21/84

56/5 - 21/84 is 219/20.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 84 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 5 × 84 = 420,
56/5 = 56 × 84/5 × 84 = 4704/420
Likewise, for the 2nd fraction, since 84 × 5 = 420,
21/84 = 21 × 5/84 × 5 = 105/420
Subtract the two like fractions:
4704/420 - 105/420 = 4704 - 105/420 = 4599/420
After reducing the fraction, the answer is 219/20
In mixed form: 1019/20

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