Subtract 21/27 from 9/16
9/16 - 21/27 is -31/144.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 27 is 432
Next, find the equivalent fraction of both fractional numbers with denominator 432 - For the 1st fraction, since 16 × 27 = 432,
9/16 = 9 × 27/16 × 27 = 243/432 - Likewise, for the 2nd fraction, since 27 × 16 = 432,
21/27 = 21 × 16/27 × 16 = 336/432 - Subtract the two like fractions:
243/432 - 336/432 = 243 - 336/432 = -93/432 - After reducing the fraction, the answer is -31/144
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