Subtract 21/80 from 7/60
7/60 - 21/80 is -7/48.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 60 × 4 = 240,
7/60 = 7 × 4/60 × 4 = 28/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
21/80 = 21 × 3/80 × 3 = 63/240 - Subtract the two like fractions:
28/240 - 63/240 = 28 - 63/240 = -35/240 - After reducing the fraction, the answer is -7/48
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