Add 1/9 and 81/80
1st number: 1/9, 2nd number: 1 1/80
1/9 + 81/80 is 809/720.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 9 × 80 = 720,
1/9 = 1 × 80/9 × 80 = 80/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
81/80 = 81 × 9/80 × 9 = 729/720 - Add the two like fractions:
80/720 + 729/720 = 80 + 729/720 = 809/720 - So, 1/9 + 81/80 = 809/720
In mixed form: 189/720
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