Subtract 25/27 from 18/90
18/90 - 25/27 is -98/135.
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,
18/90 = 18 × 3/90 × 3 = 54/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
25/27 = 25 × 10/27 × 10 = 250/270 - Subtract the two like fractions:
54/270 - 250/270 = 54 - 250/270 = -196/270 - After reducing the fraction, the answer is -98/135
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