Subtract 21/72 from 40/12
1st number: 3 4/12, 2nd number: 21/72
40/12 - 21/72 is 73/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 12 × 6 = 72,
40/12 = 40 × 6/12 × 6 = 240/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
21/72 = 21 × 1/72 × 1 = 21/72 - Subtract the two like fractions:
240/72 - 21/72 = 240 - 21/72 = 219/72 - After reducing the fraction, the answer is 73/24
- In mixed form: 31/24
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