Subtract 84/54 from 80/63
1st number: 1 17/63, 2nd number: 1 30/54
80/63 - 84/54 is -2/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 63 × 6 = 378,
80/63 = 80 × 6/63 × 6 = 480/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
84/54 = 84 × 7/54 × 7 = 588/378 - Subtract the two like fractions:
480/378 - 588/378 = 480 - 588/378 = -108/378 - After reducing the fraction, the answer is -2/7
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