Subtract 56/49 from 21/28
1st number: 21/28, 2nd number: 1 7/49
21/28 - 56/49 is -11/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 49 is 196
Next, find the equivalent fraction of both fractional numbers with denominator 196 - For the 1st fraction, since 28 × 7 = 196,
21/28 = 21 × 7/28 × 7 = 147/196 - Likewise, for the 2nd fraction, since 49 × 4 = 196,
56/49 = 56 × 4/49 × 4 = 224/196 - Subtract the two like fractions:
147/196 - 224/196 = 147 - 224/196 = -77/196 - After reducing the fraction, the answer is -11/28
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