Subtract 15/16 from 20/27
20/27 - 15/16 is -85/432.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 16 is 432
Next, find the equivalent fraction of both fractional numbers with denominator 432 - For the 1st fraction, since 27 × 16 = 432,
20/27 = 20 × 16/27 × 16 = 320/432 - Likewise, for the 2nd fraction, since 16 × 27 = 432,
15/16 = 15 × 27/16 × 27 = 405/432 - Subtract the two like fractions:
320/432 - 405/432 = 320 - 405/432 = -85/432
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