Add 3/20 and 81/12
1st number: 3/20, 2nd number: 6 9/12
3/20 + 81/12 is 69/10.
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,
3/20 = 3 × 3/20 × 3 = 9/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
81/12 = 81 × 5/12 × 5 = 405/60 - Add the two like fractions:
9/60 + 405/60 = 9 + 405/60 = 414/60 - 414/60 simplified gives 69/10
- So, 3/20 + 81/12 = 69/10
In mixed form: 69/10
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