Subtract 81/80 from 28/75
1st number: 28/75, 2nd number: 1 1/80
28/75 - 81/80 is -767/1200.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 80 is 1200
Next, find the equivalent fraction of both fractional numbers with denominator 1200 - For the 1st fraction, since 75 × 16 = 1200,
28/75 = 28 × 16/75 × 16 = 448/1200 - Likewise, for the 2nd fraction, since 80 × 15 = 1200,
81/80 = 81 × 15/80 × 15 = 1215/1200 - Subtract the two like fractions:
448/1200 - 1215/1200 = 448 - 1215/1200 = -767/1200
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