Subtract 42/27 from 21/16
1st number: 1 5/16, 2nd number: 1 15/27
21/16 - 42/27 is -35/144.
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,
21/16 = 21 × 27/16 × 27 = 567/432 - Likewise, for the 2nd fraction, since 27 × 16 = 432,
42/27 = 42 × 16/27 × 16 = 672/432 - Subtract the two like fractions:
567/432 - 672/432 = 567 - 672/432 = -105/432 - After reducing the fraction, the answer is -35/144
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