Subtract 21/20 from 90/6
1st number: 15 0/6, 2nd number: 1 1/20
90/6 - 21/20 is 279/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 6 × 10 = 60,
90/6 = 90 × 10/6 × 10 = 900/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
21/20 = 21 × 3/20 × 3 = 63/60 - Subtract the two like fractions:
900/60 - 63/60 = 900 - 63/60 = 837/60 - After reducing the fraction, the answer is 279/20
- In mixed form: 1319/20
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