Subtract 30/80 from 28/18
1st number: 1 10/18, 2nd number: 30/80
28/18 - 30/80 is 85/72.
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,
28/18 = 28 × 40/18 × 40 = 1120/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
30/80 = 30 × 9/80 × 9 = 270/720 - Subtract the two like fractions:
1120/720 - 270/720 = 1120 - 270/720 = 850/720 - After reducing the fraction, the answer is 85/72
- In mixed form: 113/72
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