Subtract 75/54 from 21/84
1st number: 21/84, 2nd number: 1 21/54
21/84 - 75/54 is -41/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 54 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 84 × 9 = 756,
21/84 = 21 × 9/84 × 9 = 189/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
75/54 = 75 × 14/54 × 14 = 1050/756 - Subtract the two like fractions:
189/756 - 1050/756 = 189 - 1050/756 = -861/756 - After reducing the fraction, the answer is -41/36
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