Subtract 42/20 from 8/27
1st number: 8/27, 2nd number: 2 2/20
8/27 - 42/20 is -487/270.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 20 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 27 × 20 = 540,
8/27 = 8 × 20/27 × 20 = 160/540 - Likewise, for the 2nd fraction, since 20 × 27 = 540,
42/20 = 42 × 27/20 × 27 = 1134/540 - Subtract the two like fractions:
160/540 - 1134/540 = 160 - 1134/540 = -974/540 - After reducing the fraction, the answer is -487/270
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