Subtract 21/10 from 20/54
1st number: 20/54, 2nd number: 2 1/10
20/54 - 21/10 is -467/270.
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,
20/54 = 20 × 5/54 × 5 = 100/270 - Likewise, for the 2nd fraction, since 10 × 27 = 270,
21/10 = 21 × 27/10 × 27 = 567/270 - Subtract the two like fractions:
100/270 - 567/270 = 100 - 567/270 = -467/270
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