Subtract 42/80 from 12/27
12/27 - 42/80 is -29/360.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 80 is 2160
Next, find the equivalent fraction of both fractional numbers with denominator 2160 - For the 1st fraction, since 27 × 80 = 2160,
12/27 = 12 × 80/27 × 80 = 960/2160 - Likewise, for the 2nd fraction, since 80 × 27 = 2160,
42/80 = 42 × 27/80 × 27 = 1134/2160 - Subtract the two like fractions:
960/2160 - 1134/2160 = 960 - 1134/2160 = -174/2160 - After reducing the fraction, the answer is -29/360
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