Subtract 20/30 from 10/54
10/54 - 20/30 is -13/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 30 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
10/54 = 10 × 5/54 × 5 = 50/270 - Likewise, for the 2nd fraction, since 30 × 9 = 270,
20/30 = 20 × 9/30 × 9 = 180/270 - Subtract the two like fractions:
50/270 - 180/270 = 50 - 180/270 = -130/270 - After reducing the fraction, the answer is -13/27
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