Add 21/9 and 12/80
1st number: 2 3/9, 2nd number: 12/80
21/9 + 12/80 is 149/60.
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,
12/80 = 12 × 9/80 × 9 = 108/720 - Add the two like fractions:
1680/720 + 108/720 = 1680 + 108/720 = 1788/720 - 1788/720 simplified gives 149/60
- So, 21/9 + 12/80 = 149/60
In mixed form: 229/60
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