Add 3/80 and 21/9
1st number: 3/80, 2nd number: 2 3/9
3/80 + 21/9 is 569/240.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 9 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
3/80 = 3 × 9/80 × 9 = 27/720 - Likewise, for the 2nd fraction, since 9 × 80 = 720,
21/9 = 21 × 80/9 × 80 = 1680/720 - Add the two like fractions:
27/720 + 1680/720 = 27 + 1680/720 = 1707/720 - 1707/720 simplified gives 569/240
- So, 3/80 + 21/9 = 569/240
In mixed form: 289/240
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