Add 81/60 and 54/12
1st number: 1 21/60, 2nd number: 4 6/12
81/60 + 54/12 is 117/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 12 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 12 × 5 = 60,
54/12 = 54 × 5/12 × 5 = 270/60 - Add the two like fractions:
81/60 + 270/60 = 81 + 270/60 = 351/60 - 351/60 simplified gives 117/20
- So, 81/60 + 54/12 = 117/20
In mixed form: 517/20
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