Subtract 20/15 from 15/27
1st number: 15/27, 2nd number: 1 5/15
15/27 - 20/15 is -7/9.
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,
15/27 = 15 × 5/27 × 5 = 75/135 - Likewise, for the 2nd fraction, since 15 × 9 = 135,
20/15 = 20 × 9/15 × 9 = 180/135 - Subtract the two like fractions:
75/135 - 180/135 = 75 - 180/135 = -105/135 - After reducing the fraction, the answer is -7/9
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