Subtract 7/56 from 21/60
21/60 - 7/56 is 9/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 56 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 60 × 14 = 840,
21/60 = 21 × 14/60 × 14 = 294/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
7/56 = 7 × 15/56 × 15 = 105/840 - Subtract the two like fractions:
294/840 - 105/840 = 294 - 105/840 = 189/840 - After reducing the fraction, the answer is 9/40
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