Add 81/54 and 18/90
1st number: 1 27/54, 2nd number: 18/90
81/54 + 18/90 is 17/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 90 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
81/54 = 81 × 5/54 × 5 = 405/270 - Likewise, for the 2nd fraction, since 90 × 3 = 270,
18/90 = 18 × 3/90 × 3 = 54/270 - Add the two like fractions:
405/270 + 54/270 = 405 + 54/270 = 459/270 - 459/270 simplified gives 17/10
- So, 81/54 + 18/90 = 17/10
In mixed form: 17/10
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