Subtract 21/60 from 20/54
20/54 - 21/60 is 11/540.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 60 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 54 × 10 = 540,
20/54 = 20 × 10/54 × 10 = 200/540 - Likewise, for the 2nd fraction, since 60 × 9 = 540,
21/60 = 21 × 9/60 × 9 = 189/540 - Subtract the two like fractions:
200/540 - 189/540 = 200 - 189/540 = 11/540
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