Add 54/81 and 90/15
1st number: 54/81, 2nd number: 6 0/15
54/81 + 90/15 is 20/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 15 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 81 × 5 = 405,
54/81 = 54 × 5/81 × 5 = 270/405 - Likewise, for the 2nd fraction, since 15 × 27 = 405,
90/15 = 90 × 27/15 × 27 = 2430/405 - Add the two like fractions:
270/405 + 2430/405 = 270 + 2430/405 = 2700/405 - 2700/405 simplified gives 20/3
- So, 54/81 + 90/15 = 20/3
In mixed form: 62/3
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