Subtract 7/27 from 8/90
8/90 - 7/27 is -23/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 27 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 90 × 3 = 270,
8/90 = 8 × 3/90 × 3 = 24/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
7/27 = 7 × 10/27 × 10 = 70/270 - Subtract the two like fractions:
24/270 - 70/270 = 24 - 70/270 = -46/270 - After reducing the fraction, the answer is -23/135
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