Subtract 20/80 from 72/36
1st number: 2 0/36, 2nd number: 20/80
72/36 - 20/80 is 7/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 36 × 20 = 720,
72/36 = 72 × 20/36 × 20 = 1440/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
20/80 = 20 × 9/80 × 9 = 180/720 - Subtract the two like fractions:
1440/720 - 180/720 = 1440 - 180/720 = 1260/720 - After reducing the fraction, the answer is 7/4
- In mixed form: 13/4
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