Subtract 28/49 from 7/15
7/15 - 28/49 is -11/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 49 is 735
Next, find the equivalent fraction of both fractional numbers with denominator 735 - For the 1st fraction, since 15 × 49 = 735,
7/15 = 7 × 49/15 × 49 = 343/735 - Likewise, for the 2nd fraction, since 49 × 15 = 735,
28/49 = 28 × 15/49 × 15 = 420/735 - Subtract the two like fractions:
343/735 - 420/735 = 343 - 420/735 = -77/735 - After reducing the fraction, the answer is -11/105
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