Subtract 9/36 from 84/21
1st number: 4 0/21, 2nd number: 9/36
84/21 - 9/36 is 15/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 21 × 12 = 252,
84/21 = 84 × 12/21 × 12 = 1008/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
9/36 = 9 × 7/36 × 7 = 63/252 - Subtract the two like fractions:
1008/252 - 63/252 = 1008 - 63/252 = 945/252 - After reducing the fraction, the answer is 15/4
- In mixed form: 33/4
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