Add 81/30 and 15/60
1st number: 2 21/30, 2nd number: 15/60
81/30 + 15/60 is 59/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 60 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
81/30 = 81 × 2/30 × 2 = 162/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
15/60 = 15 × 1/60 × 1 = 15/60 - Add the two like fractions:
162/60 + 15/60 = 162 + 15/60 = 177/60 - 177/60 simplified gives 59/20
- So, 81/30 + 15/60 = 59/20
In mixed form: 219/20
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