Subtract 21/5 from 14/56, Solve 14/56

Subtract 21/5 from 14/56

1^st number: 14/56, 2^nd number: 4 1/5

14/56 - 21/5 is -79/20.

Find the least common denominator or LCM of the two denominators:
LCM of 56 and 5 is 280

Next, find the equivalent fraction of both fractional numbers with denominator 280
For the 1st fraction, since 56 × 5 = 280,
14/56 = 14 × 5/56 × 5 = 70/280
Likewise, for the 2nd fraction, since 5 × 56 = 280,
21/5 = 21 × 56/5 × 56 = 1176/280
Subtract the two like fractions:
70/280 - 1176/280 = 70 - 1176/280 = -1106/280
After reducing the fraction, the answer is -79/20

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