Subtract 15/4 from 27/28
1st number: 27/28, 2nd number: 3 3/4
27/28 - 15/4 is -39/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 4 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 28 × 1 = 28,
27/28 = 27 × 1/28 × 1 = 27/28 - Likewise, for the 2nd fraction, since 4 × 7 = 28,
15/4 = 15 × 7/4 × 7 = 105/28 - Subtract the two like fractions:
27/28 - 105/28 = 27 - 105/28 = -78/28 - After reducing the fraction, the answer is -39/14
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