Add 18/15 and 40/12
1st number: 1 3/15, 2nd number: 3 4/12
18/15 + 40/12 is 68/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
18/15 = 18 × 4/15 × 4 = 72/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
40/12 = 40 × 5/12 × 5 = 200/60 - Add the two like fractions:
72/60 + 200/60 = 72 + 200/60 = 272/60 - 272/60 simplified gives 68/15
- So, 18/15 + 40/12 = 68/15
In mixed form: 48/15
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