Subtract 80/14 from 90/63
1st number: 1 27/63, 2nd number: 5 10/14
90/63 - 80/14 is -30/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 14 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 63 × 2 = 126,
90/63 = 90 × 2/63 × 2 = 180/126 - Likewise, for the 2nd fraction, since 14 × 9 = 126,
80/14 = 80 × 9/14 × 9 = 720/126 - Subtract the two like fractions:
180/126 - 720/126 = 180 - 720/126 = -540/126 - After reducing the fraction, the answer is -30/7
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