Subtract 2/54 from 21/90
21/90 - 2/54 is 53/270.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 90 × 3 = 270,
21/90 = 21 × 3/90 × 3 = 63/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
2/54 = 2 × 5/54 × 5 = 10/270 - Subtract the two like fractions:
63/270 - 10/270 = 63 - 10/270 = 53/270
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