Add 81/60 and 9/3
1st number: 1 21/60, 2nd number: 3 0/3
81/60 + 9/3 is 87/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 3 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 60 × 1 = 60,
81/60 = 81 × 1/60 × 1 = 81/60 - Likewise, for the 2nd fraction, since 3 × 20 = 60,
9/3 = 9 × 20/3 × 20 = 180/60 - Add the two like fractions:
81/60 + 180/60 = 81 + 180/60 = 261/60 - 261/60 simplified gives 87/20
- So, 81/60 + 9/3 = 87/20
In mixed form: 47/20
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