Subtract 80/12 from 81/9
1st number: 9 0/9, 2nd number: 6 8/12
81/9 - 80/12 is 7/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 12 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 9 × 4 = 36,
81/9 = 81 × 4/9 × 4 = 324/36 - Likewise, for the 2nd fraction, since 12 × 3 = 36,
80/12 = 80 × 3/12 × 3 = 240/36 - Subtract the two like fractions:
324/36 - 240/36 = 324 - 240/36 = 84/36 - After reducing the fraction, the answer is 7/3
- In mixed form: 21/3
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