Add 90/54 and 20/81
1st number: 1 36/54, 2nd number: 20/81
90/54 + 20/81 is 155/81.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 81 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 54 × 3 = 162,
90/54 = 90 × 3/54 × 3 = 270/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
20/81 = 20 × 2/81 × 2 = 40/162 - Add the two like fractions:
270/162 + 40/162 = 270 + 40/162 = 310/162 - 310/162 simplified gives 155/81
- So, 90/54 + 20/81 = 155/81
In mixed form: 174/81
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