Subtract 45/54 from 10/20
10/20 - 45/54 is -1/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 54 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 20 × 27 = 540,
10/20 = 10 × 27/20 × 27 = 270/540 - Likewise, for the 2nd fraction, since 54 × 10 = 540,
45/54 = 45 × 10/54 × 10 = 450/540 - Subtract the two like fractions:
270/540 - 450/540 = 270 - 450/540 = -180/540 - After reducing the fraction, the answer is -1/3
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