Add 28/12 and 30/40
1st number: 2 4/12, 2nd number: 30/40
28/12 + 30/40 is 37/12.
Steps for adding 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 - Add the two like fractions:
280/120 + 90/120 = 280 + 90/120 = 370/120 - 370/120 simplified gives 37/12
- So, 28/12 + 30/40 = 37/12
In mixed form: 31/12
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