Subtract 12/5 from 75/80
1st number: 75/80, 2nd number: 2 2/5
75/80 - 12/5 is -117/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 5 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
75/80 = 75 × 1/80 × 1 = 75/80 - Likewise, for the 2nd fraction, since 5 × 16 = 80,
12/5 = 12 × 16/5 × 16 = 192/80 - Subtract the two like fractions:
75/80 - 192/80 = 75 - 192/80 = -117/80
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