Subtract 27/72 from 12/4
1st number: 3 0/4, 2nd number: 27/72
12/4 - 27/72 is 21/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 4 × 18 = 72,
12/4 = 12 × 18/4 × 18 = 216/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
27/72 = 27 × 1/72 × 1 = 27/72 - Subtract the two like fractions:
216/72 - 27/72 = 216 - 27/72 = 189/72 - After reducing the fraction, the answer is 21/8
- In mixed form: 25/8
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