Add 81/20 and 15/30
1st number: 4 1/20, 2nd number: 15/30
81/20 + 15/30 is 91/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
81/20 = 81 × 3/20 × 3 = 243/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
15/30 = 15 × 2/30 × 2 = 30/60 - Add the two like fractions:
243/60 + 30/60 = 243 + 30/60 = 273/60 - 273/60 simplified gives 91/20
- So, 81/20 + 15/30 = 91/20
In mixed form: 411/20
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