Add 30/9 and 45/20
1st number: 3 3/9, 2nd number: 2 5/20
30/9 + 45/20 is 67/12.
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,
30/9 = 30 × 20/9 × 20 = 600/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
45/20 = 45 × 9/20 × 9 = 405/180 - Add the two like fractions:
600/180 + 405/180 = 600 + 405/180 = 1005/180 - 1005/180 simplified gives 67/12
- So, 30/9 + 45/20 = 67/12
In mixed form: 57/12
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