Subtract 9/16 from 21/75
21/75 - 9/16 is -113/400.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 16 is 1200
Next, find the equivalent fraction of both fractional numbers with denominator 1200 - For the 1st fraction, since 75 × 16 = 1200,
21/75 = 21 × 16/75 × 16 = 336/1200 - Likewise, for the 2nd fraction, since 16 × 75 = 1200,
9/16 = 9 × 75/16 × 75 = 675/1200 - Subtract the two like fractions:
336/1200 - 675/1200 = 336 - 675/1200 = -339/1200 - After reducing the fraction, the answer is -113/400
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