Add 27/12 and 45/20
1st number: 2 3/12, 2nd number: 2 5/20
27/12 + 45/20 is 9/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
27/12 = 27 × 5/12 × 5 = 135/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
45/20 = 45 × 3/20 × 3 = 135/60 - Add the two like fractions:
135/60 + 135/60 = 135 + 135/60 = 270/60 - 270/60 simplified gives 9/2
- So, 27/12 + 45/20 = 9/2
In mixed form: 41/2
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