Subtract 21/90 from 80/6
1st number: 13 2/6, 2nd number: 21/90
80/6 - 21/90 is 131/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 6 × 15 = 90,
80/6 = 80 × 15/6 × 15 = 1200/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
21/90 = 21 × 1/90 × 1 = 21/90 - Subtract the two like fractions:
1200/90 - 21/90 = 1200 - 21/90 = 1179/90 - After reducing the fraction, the answer is 131/10
- In mixed form: 131/10
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