Subtract 90/45 from 49/80
1st number: 49/80, 2nd number: 2 0/45
49/80 - 90/45 is -111/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 45 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 45 × 16 = 720,
90/45 = 90 × 16/45 × 16 = 1440/720 - Subtract the two like fractions:
441/720 - 1440/720 = 441 - 1440/720 = -999/720 - After reducing the fraction, the answer is -111/80
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Related: 98/80-90/45