Subtract 40/84 from 81/9
1st number: 9 0/9, 2nd number: 40/84
81/9 - 40/84 is 179/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 9 × 28 = 252,
81/9 = 81 × 28/9 × 28 = 2268/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
40/84 = 40 × 3/84 × 3 = 120/252 - Subtract the two like fractions:
2268/252 - 120/252 = 2268 - 120/252 = 2148/252 - After reducing the fraction, the answer is 179/21
- In mixed form: 811/21
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