Subtract 1/36 from 90/80
1st number: 1 10/80, 2nd number: 1/36
90/80 - 1/36 is 79/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 36 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 36 × 20 = 720,
1/36 = 1 × 20/36 × 20 = 20/720 - Subtract the two like fractions:
810/720 - 20/720 = 810 - 20/720 = 790/720 - After reducing the fraction, the answer is 79/72
- In mixed form: 17/72
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