Add 81/18 and 72/36
1st number: 4 9/18, 2nd number: 2 0/36
81/18 + 72/36 is 13/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 36 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 18 × 2 = 36,
81/18 = 81 × 2/18 × 2 = 162/36 - Likewise, for the 2nd fraction, since 36 × 1 = 36,
72/36 = 72 × 1/36 × 1 = 72/36 - Add the two like fractions:
162/36 + 72/36 = 162 + 72/36 = 234/36 - 234/36 simplified gives 13/2
- So, 81/18 + 72/36 = 13/2
In mixed form: 61/2
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