Add 72/9 and 9/18
1st number: 8 0/9, 2nd number: 9/18
72/9 + 9/18 is 17/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 9 × 2 = 18,
72/9 = 72 × 2/9 × 2 = 144/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
9/18 = 9 × 1/18 × 1 = 9/18 - Add the two like fractions:
144/18 + 9/18 = 144 + 9/18 = 153/18 - 153/18 simplified gives 17/2
- So, 72/9 + 9/18 = 17/2
In mixed form: 81/2
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