Subtract 21/80 from 9/60
9/60 - 21/80 is -9/80.
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,
9/60 = 9 × 4/60 × 4 = 36/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
21/80 = 21 × 3/80 × 3 = 63/240 - Subtract the two like fractions:
36/240 - 63/240 = 36 - 63/240 = -27/240 - After reducing the fraction, the answer is -9/80
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