Subtract 9/84 from 81/36
1st number: 2 9/36, 2nd number: 9/84
81/36 - 9/84 is 15/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
81/36 = 81 × 7/36 × 7 = 567/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
9/84 = 9 × 3/84 × 3 = 27/252 - Subtract the two like fractions:
567/252 - 27/252 = 567 - 27/252 = 540/252 - After reducing the fraction, the answer is 15/7
- In mixed form: 21/7
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