Subtract 9/80 from 15/12
1st number: 1 3/12, 2nd number: 9/80
15/12 - 9/80 is 91/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 12 × 20 = 240,
15/12 = 15 × 20/12 × 20 = 300/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
9/80 = 9 × 3/80 × 3 = 27/240 - Subtract the two like fractions:
300/240 - 27/240 = 300 - 27/240 = 273/240 - After reducing the fraction, the answer is 91/80
- In mixed form: 111/80
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