Subtract 20/45 from 10/27
10/27 - 20/45 is -2/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 45 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 27 × 5 = 135,
10/27 = 10 × 5/27 × 5 = 50/135 - Likewise, for the 2nd fraction, since 45 × 3 = 135,
20/45 = 20 × 3/45 × 3 = 60/135 - Subtract the two like fractions:
50/135 - 60/135 = 50 - 60/135 = -10/135 - After reducing the fraction, the answer is -2/27
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