Subtract 28/49 from 15/35
15/35 - 28/49 is -1/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 49 is 245
Next, find the equivalent fraction of both fractional numbers with denominator 245 - For the 1st fraction, since 35 × 7 = 245,
15/35 = 15 × 7/35 × 7 = 105/245 - Likewise, for the 2nd fraction, since 49 × 5 = 245,
28/49 = 28 × 5/49 × 5 = 140/245 - Subtract the two like fractions:
105/245 - 140/245 = 105 - 140/245 = -35/245 - After reducing the fraction, the answer is -1/7
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