Subtract 75/90 from 49/80
49/80 - 75/90 is -53/240.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 90 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
49/80 = 49 × 9/80 × 9 = 441/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
75/90 = 75 × 8/90 × 8 = 600/720 - Subtract the two like fractions:
441/720 - 600/720 = 441 - 600/720 = -159/720 - After reducing the fraction, the answer is -53/240
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Related: 98/80-75/90