Add 20/72 and 12/9
1st number: 20/72, 2nd number: 1 3/9
20/72 + 12/9 is 29/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 9 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
20/72 = 20 × 1/72 × 1 = 20/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
12/9 = 12 × 8/9 × 8 = 96/72 - Add the two like fractions:
20/72 + 96/72 = 20 + 96/72 = 116/72 - 116/72 simplified gives 29/18
- So, 20/72 + 12/9 = 29/18
In mixed form: 111/18
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