Add 45/12 and 81/54
1st number: 3 9/12, 2nd number: 1 27/54
45/12 + 81/54 is 21/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 54 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 12 × 9 = 108,
45/12 = 45 × 9/12 × 9 = 405/108 - Likewise, for the 2nd fraction, since 54 × 2 = 108,
81/54 = 81 × 2/54 × 2 = 162/108 - Add the two like fractions:
405/108 + 162/108 = 405 + 162/108 = 567/108 - 567/108 simplified gives 21/4
- So, 45/12 + 81/54 = 21/4
In mixed form: 51/4
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