Add 81/60 and 27/30
1st number: 1 21/60, 2nd number: 27/30
81/60 + 27/30 is 9/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 30 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 30 × 2 = 60,
27/30 = 27 × 2/30 × 2 = 54/60 - Add the two like fractions:
81/60 + 54/60 = 81 + 54/60 = 135/60 - 135/60 simplified gives 9/4
- So, 81/60 + 27/30 = 9/4
In mixed form: 21/4
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