Subtract 18/36 from 21/3
1st number: 7 0/3, 2nd number: 18/36
21/3 - 18/36 is 13/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 36 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 3 × 12 = 36,
21/3 = 21 × 12/3 × 12 = 252/36 - Likewise, for the 2nd fraction, since 36 × 1 = 36,
18/36 = 18 × 1/36 × 1 = 18/36 - Subtract the two like fractions:
252/36 - 18/36 = 252 - 18/36 = 234/36 - After reducing the fraction, the answer is 13/2
- In mixed form: 61/2
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