Subtract 42/49 from 9/15
9/15 - 42/49 is -9/35.
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,
9/15 = 9 × 49/15 × 49 = 441/735 - Likewise, for the 2nd fraction, since 49 × 15 = 735,
42/49 = 42 × 15/49 × 15 = 630/735 - Subtract the two like fractions:
441/735 - 630/735 = 441 - 630/735 = -189/735 - After reducing the fraction, the answer is -9/35
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