Subtract 12/80 from 90/5
1st number: 18 0/5, 2nd number: 12/80
90/5 - 12/80 is 357/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 5 × 16 = 80,
90/5 = 90 × 16/5 × 16 = 1440/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
12/80 = 12 × 1/80 × 1 = 12/80 - Subtract the two like fractions:
1440/80 - 12/80 = 1440 - 12/80 = 1428/80 - After reducing the fraction, the answer is 357/20
- In mixed form: 1717/20
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