Subtract 45/90 from 49/80
49/80 - 45/90 is 9/80.
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,
45/90 = 45 × 8/90 × 8 = 360/720 - Subtract the two like fractions:
441/720 - 360/720 = 441 - 360/720 = 81/720 - After reducing the fraction, the answer is 9/80
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Related: 98/80-45/90