Add 81/45 and 27/12
1st number: 1 36/45, 2nd number: 2 3/12
81/45 + 27/12 is 81/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 12 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
81/45 = 81 × 4/45 × 4 = 324/180 - Likewise, for the 2nd fraction, since 12 × 15 = 180,
27/12 = 27 × 15/12 × 15 = 405/180 - Add the two like fractions:
324/180 + 405/180 = 324 + 405/180 = 729/180 - 729/180 simplified gives 81/20
- So, 81/45 + 27/12 = 81/20
In mixed form: 41/20
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