Subtract 21/80 from 10/54
10/54 - 21/80 is -167/2160.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 80 is 2160
Next, find the equivalent fraction of both fractional numbers with denominator 2160 - For the 1st fraction, since 54 × 40 = 2160,
10/54 = 10 × 40/54 × 40 = 400/2160 - Likewise, for the 2nd fraction, since 80 × 27 = 2160,
21/80 = 21 × 27/80 × 27 = 567/2160 - Subtract the two like fractions:
400/2160 - 567/2160 = 400 - 567/2160 = -167/2160
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