Subtract 21/4 from 72/56
1st number: 1 16/56, 2nd number: 5 1/4
72/56 - 21/4 is -111/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 4 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 56 × 1 = 56,
72/56 = 72 × 1/56 × 1 = 72/56 - Likewise, for the 2nd fraction, since 4 × 14 = 56,
21/4 = 21 × 14/4 × 14 = 294/56 - Subtract the two like fractions:
72/56 - 294/56 = 72 - 294/56 = -222/56 - After reducing the fraction, the answer is -111/28
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