Add 72/9 and 20/12
1st number: 8 0/9, 2nd number: 1 8/12
72/9 + 20/12 is 29/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 12 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 9 × 4 = 36,
72/9 = 72 × 4/9 × 4 = 288/36 - Likewise, for the 2nd fraction, since 12 × 3 = 36,
20/12 = 20 × 3/12 × 3 = 60/36 - Add the two like fractions:
288/36 + 60/36 = 288 + 60/36 = 348/36 - 348/36 simplified gives 29/3
- So, 72/9 + 20/12 = 29/3
In mixed form: 92/3
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