Subtract 18/5 from 90/15
1st number: 6 0/15, 2nd number: 3 3/5
90/15 - 18/5 is 12/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 5 is 15
Next, find the equivalent fraction of both fractional numbers with denominator 15 - For the 1st fraction, since 15 × 1 = 15,
90/15 = 90 × 1/15 × 1 = 90/15 - Likewise, for the 2nd fraction, since 5 × 3 = 15,
18/5 = 18 × 3/5 × 3 = 54/15 - Subtract the two like fractions:
90/15 - 54/15 = 90 - 54/15 = 36/15 - After reducing the fraction, the answer is 12/5
- In mixed form: 22/5
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