Subtract 21/27 from 7/16, Solve 7/16

Subtract 21/27 from 7/16

7/16 - 21/27 is -49/144.

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,
7/16 = 7 × 27/16 × 27 = 189/432
Likewise, for the 2nd fraction, since 27 × 16 = 432,
21/27 = 21 × 16/27 × 16 = 336/432
Subtract the two like fractions:
189/432 - 336/432 = 189 - 336/432 = -147/432
After reducing the fraction, the answer is -49/144

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