Subtract 80/90 from 9/49
9/49 - 80/90 is -311/441.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 90 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 49 × 90 = 4410,
9/49 = 9 × 90/49 × 90 = 810/4410 - Likewise, for the 2nd fraction, since 90 × 49 = 4410,
80/90 = 80 × 49/90 × 49 = 3920/4410 - Subtract the two like fractions:
810/4410 - 3920/4410 = 810 - 3920/4410 = -3110/4410 - After reducing the fraction, the answer is -311/441
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