Subtract 21/14 from 21/60
1st number: 21/60, 2nd number: 1 7/14
21/60 - 21/14 is -23/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 14 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
21/60 = 21 × 7/60 × 7 = 147/420 - Likewise, for the 2nd fraction, since 14 × 30 = 420,
21/14 = 21 × 30/14 × 30 = 630/420 - Subtract the two like fractions:
147/420 - 630/420 = 147 - 630/420 = -483/420 - After reducing the fraction, the answer is -23/20
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