Subtract 9/10 from 27/54
27/54 - 9/10 is -2/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 10 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
27/54 = 27 × 5/54 × 5 = 135/270 - Likewise, for the 2nd fraction, since 10 × 27 = 270,
9/10 = 9 × 27/10 × 27 = 243/270 - Subtract the two like fractions:
135/270 - 243/270 = 135 - 243/270 = -108/270 - After reducing the fraction, the answer is -2/5
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