Subtract 8/40 from 9/49
9/49 - 8/40 is -4/245.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 40 is 1960
Next, find the equivalent fraction of both fractional numbers with denominator 1960 - For the 1st fraction, since 49 × 40 = 1960,
9/49 = 9 × 40/49 × 40 = 360/1960 - Likewise, for the 2nd fraction, since 40 × 49 = 1960,
8/40 = 8 × 49/40 × 49 = 392/1960 - Subtract the two like fractions:
360/1960 - 392/1960 = 360 - 392/1960 = -32/1960 - After reducing the fraction, the answer is -4/245
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