Subtract 21/15 from 3/56
1st number: 3/56, 2nd number: 1 6/15
3/56 - 21/15 is -377/280.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 15 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 56 × 15 = 840,
3/56 = 3 × 15/56 × 15 = 45/840 - Likewise, for the 2nd fraction, since 15 × 56 = 840,
21/15 = 21 × 56/15 × 56 = 1176/840 - Subtract the two like fractions:
45/840 - 1176/840 = 45 - 1176/840 = -1131/840 - After reducing the fraction, the answer is -377/280
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