Subtract 12/80 from 7/5
1st number: 1 2/5, 2nd number: 12/80
7/5 - 12/80 is 5/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 5 × 16 = 80,
7/5 = 7 × 16/5 × 16 = 112/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
12/80 = 12 × 1/80 × 1 = 12/80 - Subtract the two like fractions:
112/80 - 12/80 = 112 - 12/80 = 100/80 - After reducing the fraction, the answer is 5/4
- In mixed form: 11/4
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