Add 90/81 and 40/18
1st number: 1 9/81, 2nd number: 2 4/18
90/81 + 40/18 is 10/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 18 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 81 × 2 = 162,
90/81 = 90 × 2/81 × 2 = 180/162 - Likewise, for the 2nd fraction, since 18 × 9 = 162,
40/18 = 40 × 9/18 × 9 = 360/162 - Add the two like fractions:
180/162 + 360/162 = 180 + 360/162 = 540/162 - 540/162 simplified gives 10/3
- So, 90/81 + 40/18 = 10/3
In mixed form: 31/3
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