Subtract 15/12 from 9/28
1st number: 9/28, 2nd number: 1 3/12
9/28 - 15/12 is -13/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
9/28 = 9 × 3/28 × 3 = 27/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
15/12 = 15 × 7/12 × 7 = 105/84 - Subtract the two like fractions:
27/84 - 105/84 = 27 - 105/84 = -78/84 - After reducing the fraction, the answer is -13/14
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