Subtract 5/21 from 7/60
7/60 - 5/21 is -17/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 21 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
7/60 = 7 × 7/60 × 7 = 49/420 - Likewise, for the 2nd fraction, since 21 × 20 = 420,
5/21 = 5 × 20/21 × 20 = 100/420 - Subtract the two like fractions:
49/420 - 100/420 = 49 - 100/420 = -51/420 - After reducing the fraction, the answer is -17/140
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