Subtract 15/80 from 27/15
1st number: 1 12/15, 2nd number: 15/80
27/15 - 15/80 is 129/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 15 × 16 = 240,
27/15 = 27 × 16/15 × 16 = 432/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
15/80 = 15 × 3/80 × 3 = 45/240 - Subtract the two like fractions:
432/240 - 45/240 = 432 - 45/240 = 387/240 - After reducing the fraction, the answer is 129/80
- In mixed form: 149/80
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