Subtract 18/90 from 7/27
7/27 - 18/90 is 8/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 90 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 27 × 10 = 270,
7/27 = 7 × 10/27 × 10 = 70/270 - Likewise, for the 2nd fraction, since 90 × 3 = 270,
18/90 = 18 × 3/90 × 3 = 54/270 - Subtract the two like fractions:
70/270 - 54/270 = 70 - 54/270 = 16/270 - After reducing the fraction, the answer is 8/135
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