Add 27/45 and 81/60
1st number: 27/45, 2nd number: 1 21/60
27/45 + 81/60 is 39/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 60 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
27/45 = 27 × 4/45 × 4 = 108/180 - Likewise, for the 2nd fraction, since 60 × 3 = 180,
81/60 = 81 × 3/60 × 3 = 243/180 - Add the two like fractions:
108/180 + 243/180 = 108 + 243/180 = 351/180 - 351/180 simplified gives 39/20
- So, 27/45 + 81/60 = 39/20
In mixed form: 119/20
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