Add 20/81 and 90/60
1st number: 20/81, 2nd number: 1 30/60
20/81 + 90/60 is 283/162.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 60 is 1620
Next, find the equivalent fraction of both fractional numbers with denominator 1620 - For the 1st fraction, since 81 × 20 = 1620,
20/81 = 20 × 20/81 × 20 = 400/1620 - Likewise, for the 2nd fraction, since 60 × 27 = 1620,
90/60 = 90 × 27/60 × 27 = 2430/1620 - Add the two like fractions:
400/1620 + 2430/1620 = 400 + 2430/1620 = 2830/1620 - 2830/1620 simplified gives 283/162
- So, 20/81 + 90/60 = 283/162
In mixed form: 1121/162
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