Add 81/3 and 7/20
1st number: 27 0/3, 2nd number: 7/20
81/3 + 7/20 is 547/20.
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,
81/3 = 81 × 20/3 × 20 = 1620/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
7/20 = 7 × 3/20 × 3 = 21/60 - Add the two like fractions:
1620/60 + 21/60 = 1620 + 21/60 = 1641/60 - 1641/60 simplified gives 547/20
- So, 81/3 + 7/20 = 547/20
In mixed form: 277/20
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