Add 28/40 and 18/12
1st number: 28/40, 2nd number: 1 6/12
28/40 + 18/12 is 11/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 12 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
28/40 = 28 × 3/40 × 3 = 84/120 - Likewise, for the 2nd fraction, since 12 × 10 = 120,
18/12 = 18 × 10/12 × 10 = 180/120 - Add the two like fractions:
84/120 + 180/120 = 84 + 180/120 = 264/120 - 264/120 simplified gives 11/5
- So, 28/40 + 18/12 = 11/5
In mixed form: 21/5
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