Subtract 9/10 from 7/54
7/54 - 9/10 is -104/135.
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,
7/54 = 7 × 5/54 × 5 = 35/270 - Likewise, for the 2nd fraction, since 10 × 27 = 270,
9/10 = 9 × 27/10 × 27 = 243/270 - Subtract the two like fractions:
35/270 - 243/270 = 35 - 243/270 = -208/270 - After reducing the fraction, the answer is -104/135
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