Subtract 63/90 from 90/80
1st number: 1 10/80, 2nd number: 63/90
90/80 - 63/90 is 17/40.
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,
90/80 = 90 × 9/80 × 9 = 810/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
63/90 = 63 × 8/90 × 8 = 504/720 - Subtract the two like fractions:
810/720 - 504/720 = 810 - 504/720 = 306/720 - After reducing the fraction, the answer is 17/40
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