Add 21/9 and 18/80
1st number: 2 3/9, 2nd number: 18/80
21/9 + 18/80 is 307/120.
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,
21/9 = 21 × 80/9 × 80 = 1680/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
18/80 = 18 × 9/80 × 9 = 162/720 - Add the two like fractions:
1680/720 + 162/720 = 1680 + 162/720 = 1842/720 - 1842/720 simplified gives 307/120
- So, 21/9 + 18/80 = 307/120
In mixed form: 267/120
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