Subtract 80/60 from 28/63
1st number: 28/63, 2nd number: 1 20/60
28/63 - 80/60 is -8/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 60 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 63 × 20 = 1260,
28/63 = 28 × 20/63 × 20 = 560/1260 - Likewise, for the 2nd fraction, since 60 × 21 = 1260,
80/60 = 80 × 21/60 × 21 = 1680/1260 - Subtract the two like fractions:
560/1260 - 1680/1260 = 560 - 1680/1260 = -1120/1260 - After reducing the fraction, the answer is -8/9
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