Add 81/36 and 18/45
1st number: 2 9/36, 2nd number: 18/45
81/36 + 18/45 is 53/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
81/36 = 81 × 5/36 × 5 = 405/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
18/45 = 18 × 4/45 × 4 = 72/180 - Add the two like fractions:
405/180 + 72/180 = 405 + 72/180 = 477/180 - 477/180 simplified gives 53/20
- So, 81/36 + 18/45 = 53/20
In mixed form: 213/20
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