Add 18/12 and 15/40
1st number: 1 6/12, 2nd number: 15/40
18/12 + 15/40 is 15/8.
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,
18/12 = 18 × 10/12 × 10 = 180/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
15/40 = 15 × 3/40 × 3 = 45/120 - Add the two like fractions:
180/120 + 45/120 = 180 + 45/120 = 225/120 - 225/120 simplified gives 15/8
- So, 18/12 + 15/40 = 15/8
In mixed form: 17/8
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