Subtract 81/12 from 30/4
1st number: 7 2/4, 2nd number: 6 9/12
30/4 - 81/12 is 3/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 12 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 4 × 3 = 12,
30/4 = 30 × 3/4 × 3 = 90/12 - Likewise, for the 2nd fraction, since 12 × 1 = 12,
81/12 = 81 × 1/12 × 1 = 81/12 - Subtract the two like fractions:
90/12 - 81/12 = 90 - 81/12 = 9/12 - After reducing the fraction, the answer is 3/4
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