Subtract 21/5 from 15/56
1st number: 15/56, 2nd number: 4 1/5
15/56 - 21/5 is -1101/280.
Steps for subtracting fractions
- 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,
15/56 = 15 × 5/56 × 5 = 75/280 - Likewise, for the 2nd fraction, since 5 × 56 = 280,
21/5 = 21 × 56/5 × 56 = 1176/280 - Subtract the two like fractions:
75/280 - 1176/280 = 75 - 1176/280 = -1101/280
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