Add 9/81 and 75/20
1st number: 9/81, 2nd number: 3 15/20
9/81 + 75/20 is 139/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 20 is 1620
Next, find the equivalent fraction of both fractional numbers with denominator 1620 - For the 1st fraction, since 81 × 20 = 1620,
9/81 = 9 × 20/81 × 20 = 180/1620 - Likewise, for the 2nd fraction, since 20 × 81 = 1620,
75/20 = 75 × 81/20 × 81 = 6075/1620 - Add the two like fractions:
180/1620 + 6075/1620 = 180 + 6075/1620 = 6255/1620 - 6255/1620 simplified gives 139/36
- So, 9/81 + 75/20 = 139/36
In mixed form: 331/36
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