Add 12/9 and 45/20
1st number: 1 3/9, 2nd number: 2 5/20
12/9 + 45/20 is 43/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 9 × 20 = 180,
12/9 = 12 × 20/9 × 20 = 240/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
45/20 = 45 × 9/20 × 9 = 405/180 - Add the two like fractions:
240/180 + 405/180 = 240 + 405/180 = 645/180 - 645/180 simplified gives 43/12
- So, 12/9 + 45/20 = 43/12
In mixed form: 37/12
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