Subtract 20/15 from 7/27
1st number: 7/27, 2nd number: 1 5/15
7/27 - 20/15 is -29/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 15 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 27 × 5 = 135,
7/27 = 7 × 5/27 × 5 = 35/135 - Likewise, for the 2nd fraction, since 15 × 9 = 135,
20/15 = 20 × 9/15 × 9 = 180/135 - Subtract the two like fractions:
35/135 - 180/135 = 35 - 180/135 = -145/135 - After reducing the fraction, the answer is -29/27
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