Subtract 40/90 from 8/54
8/54 - 40/90 is -8/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 90 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
8/54 = 8 × 5/54 × 5 = 40/270 - Likewise, for the 2nd fraction, since 90 × 3 = 270,
40/90 = 40 × 3/90 × 3 = 120/270 - Subtract the two like fractions:
40/270 - 120/270 = 40 - 120/270 = -80/270 - After reducing the fraction, the answer is -8/27
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