Add 3/12 and 81/15
1st number: 3/12, 2nd number: 5 6/15
3/12 + 81/15 is 113/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
3/12 = 3 × 5/12 × 5 = 15/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
81/15 = 81 × 4/15 × 4 = 324/60 - Add the two like fractions:
15/60 + 324/60 = 15 + 324/60 = 339/60 - 339/60 simplified gives 113/20
- So, 3/12 + 81/15 = 113/20
In mixed form: 513/20
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