Subtract 14/21 from 12/80
12/80 - 14/21 is -31/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 21 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 80 × 21 = 1680,
12/80 = 12 × 21/80 × 21 = 252/1680 - Likewise, for the 2nd fraction, since 21 × 80 = 1680,
14/21 = 14 × 80/21 × 80 = 1120/1680 - Subtract the two like fractions:
252/1680 - 1120/1680 = 252 - 1120/1680 = -868/1680 - After reducing the fraction, the answer is -31/60
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