Subtract 12/20 from 3/54
3/54 - 12/20 is -49/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 20 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 54 × 10 = 540,
3/54 = 3 × 10/54 × 10 = 30/540 - Likewise, for the 2nd fraction, since 20 × 27 = 540,
12/20 = 12 × 27/20 × 27 = 324/540 - Subtract the two like fractions:
30/540 - 324/540 = 30 - 324/540 = -294/540 - After reducing the fraction, the answer is -49/90
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