Add 20/30 and 12/9
1st number: 20/30, 2nd number: 1 3/9
20/30 + 12/9 is 2/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
20/30 = 20 × 3/30 × 3 = 60/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
12/9 = 12 × 10/9 × 10 = 120/90 - Add the two like fractions:
60/90 + 120/90 = 60 + 120/90 = 180/90 - 180/90 simplified gives 2/1
- So, 20/30 + 12/9 = 2/1
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