Add 81/60 and 54/36
1st number: 1 21/60, 2nd number: 1 18/36
81/60 + 54/36 is 57/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 60 × 3 = 180,
81/60 = 81 × 3/60 × 3 = 243/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
54/36 = 54 × 5/36 × 5 = 270/180 - Add the two like fractions:
243/180 + 270/180 = 243 + 270/180 = 513/180 - 513/180 simplified gives 57/20
- So, 81/60 + 54/36 = 57/20
In mixed form: 217/20
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