Subtract 15/16 from 20/54
20/54 - 15/16 is -245/432.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 16 is 432
Next, find the equivalent fraction of both fractional numbers with denominator 432 - For the 1st fraction, since 54 × 8 = 432,
20/54 = 20 × 8/54 × 8 = 160/432 - Likewise, for the 2nd fraction, since 16 × 27 = 432,
15/16 = 15 × 27/16 × 27 = 405/432 - Subtract the two like fractions:
160/432 - 405/432 = 160 - 405/432 = -245/432
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