Add 84/3 and 81/20
1st number: 28 0/3, 2nd number: 4 1/20
84/3 + 81/20 is 641/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 3 × 20 = 60,
84/3 = 84 × 20/3 × 20 = 1680/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
81/20 = 81 × 3/20 × 3 = 243/60 - Add the two like fractions:
1680/60 + 243/60 = 1680 + 243/60 = 1923/60 - 1923/60 simplified gives 641/20
- So, 84/3 + 81/20 = 641/20
In mixed form: 321/20
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