Subtract 15/20 from 16/27
16/27 - 15/20 is -17/108.
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,
16/27 = 16 × 20/27 × 20 = 320/540 - Likewise, for the 2nd fraction, since 20 × 27 = 540,
15/20 = 15 × 27/20 × 27 = 405/540 - Subtract the two like fractions:
320/540 - 405/540 = 320 - 405/540 = -85/540 - After reducing the fraction, the answer is -17/108
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