Subtract 28/80 from 72/18
1st number: 4 0/18, 2nd number: 28/80
72/18 - 28/80 is 73/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 18 × 40 = 720,
72/18 = 72 × 40/18 × 40 = 2880/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
28/80 = 28 × 9/80 × 9 = 252/720 - Subtract the two like fractions:
2880/720 - 252/720 = 2880 - 252/720 = 2628/720 - After reducing the fraction, the answer is 73/20
- In mixed form: 313/20
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