Add 81/20 and 3/12
1st number: 4 1/20, 2nd number: 3/12
81/20 + 3/12 is 43/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 12 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 12 × 5 = 60,
3/12 = 3 × 5/12 × 5 = 15/60 - Add the two like fractions:
243/60 + 15/60 = 243 + 15/60 = 258/60 - 258/60 simplified gives 43/10
- So, 81/20 + 3/12 = 43/10
In mixed form: 43/10
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