Add 81/5 and 15/12
1st number: 16 1/5, 2nd number: 1 3/12
81/5 + 15/12 is 349/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 5 × 12 = 60,
81/5 = 81 × 12/5 × 12 = 972/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
15/12 = 15 × 5/12 × 5 = 75/60 - Add the two like fractions:
972/60 + 75/60 = 972 + 75/60 = 1047/60 - 1047/60 simplified gives 349/20
- So, 81/5 + 15/12 = 349/20
In mixed form: 179/20
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