Subtract 21/54 from 4/16
4/16 - 21/54 is -5/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 54 is 432
Next, find the equivalent fraction of both fractional numbers with denominator 432 - For the 1st fraction, since 16 × 27 = 432,
4/16 = 4 × 27/16 × 27 = 108/432 - Likewise, for the 2nd fraction, since 54 × 8 = 432,
21/54 = 21 × 8/54 × 8 = 168/432 - Subtract the two like fractions:
108/432 - 168/432 = 108 - 168/432 = -60/432 - After reducing the fraction, the answer is -5/36
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