Subtract 21/18 from 84/36
1st number: 2 12/36, 2nd number: 1 3/18
84/36 - 21/18 is 7/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 36 × 1 = 36,
84/36 = 84 × 1/36 × 1 = 84/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
21/18 = 21 × 2/18 × 2 = 42/36 - Subtract the two like fractions:
84/36 - 42/36 = 84 - 42/36 = 42/36 - After reducing the fraction, the answer is 7/6
- In mixed form: 11/6
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