Subtract 40/49 from 35/70
35/70 - 40/49 is -31/98.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 49 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 70 × 7 = 490,
35/70 = 35 × 7/70 × 7 = 245/490 - Likewise, for the 2nd fraction, since 49 × 10 = 490,
40/49 = 40 × 10/49 × 10 = 400/490 - Subtract the two like fractions:
245/490 - 400/490 = 245 - 400/490 = -155/490 - After reducing the fraction, the answer is -31/98
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