Subtract 30/40 from 28/12
1st number: 2 4/12, 2nd number: 30/40
28/12 - 30/40 is 19/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 12 × 10 = 120,
28/12 = 28 × 10/12 × 10 = 280/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
30/40 = 30 × 3/40 × 3 = 90/120 - Subtract the two like fractions:
280/120 - 90/120 = 280 - 90/120 = 190/120 - After reducing the fraction, the answer is 19/12
- In mixed form: 17/12
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