Subtract 15/18 from 72/12
1st number: 6 0/12, 2nd number: 15/18
72/12 - 15/18 is 31/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 12 × 3 = 36,
72/12 = 72 × 3/12 × 3 = 216/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
15/18 = 15 × 2/18 × 2 = 30/36 - Subtract the two like fractions:
216/36 - 30/36 = 216 - 30/36 = 186/36 - After reducing the fraction, the answer is 31/6
- In mixed form: 51/6
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