Subtract 8/27 from 21/80
21/80 - 8/27 is -73/2160.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 27 is 2160
Next, find the equivalent fraction of both fractional numbers with denominator 2160 - For the 1st fraction, since 80 × 27 = 2160,
21/80 = 21 × 27/80 × 27 = 567/2160 - Likewise, for the 2nd fraction, since 27 × 80 = 2160,
8/27 = 8 × 80/27 × 80 = 640/2160 - Subtract the two like fractions:
567/2160 - 640/2160 = 567 - 640/2160 = -73/2160
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