Add 80/9 and 9/20
1st number: 8 8/9, 2nd number: 9/20
80/9 + 9/20 is 1681/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 9 × 20 = 180,
80/9 = 80 × 20/9 × 20 = 1600/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
9/20 = 9 × 9/20 × 9 = 81/180 - Add the two like fractions:
1600/180 + 81/180 = 1600 + 81/180 = 1681/180 - So, 80/9 + 9/20 = 1681/180
In mixed form: 961/180
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