Subtract 42/27 from 21/75
1st number: 21/75, 2nd number: 1 15/27
21/75 - 42/27 is -287/225.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 27 is 675
Next, find the equivalent fraction of both fractional numbers with denominator 675 - For the 1st fraction, since 75 × 9 = 675,
21/75 = 21 × 9/75 × 9 = 189/675 - Likewise, for the 2nd fraction, since 27 × 25 = 675,
42/27 = 42 × 25/27 × 25 = 1050/675 - Subtract the two like fractions:
189/675 - 1050/675 = 189 - 1050/675 = -861/675 - After reducing the fraction, the answer is -287/225
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