Subtract 28/49 from 15/56
15/56 - 28/49 is -17/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 49 is 392
Next, find the equivalent fraction of both fractional numbers with denominator 392 - For the 1st fraction, since 56 × 7 = 392,
15/56 = 15 × 7/56 × 7 = 105/392 - Likewise, for the 2nd fraction, since 49 × 8 = 392,
28/49 = 28 × 8/49 × 8 = 224/392 - Subtract the two like fractions:
105/392 - 224/392 = 105 - 224/392 = -119/392 - After reducing the fraction, the answer is -17/56
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