Evaluate
\frac{19}{30}\approx 0.633333333
Factor
\frac{19}{2 \cdot 3 \cdot 5} = 0.6333333333333333
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\frac{21+17}{60}
Since \frac{21}{60} and \frac{17}{60} have the same denominator, add them by adding their numerators.
\frac{38}{60}
Add 21 and 17 to get 38.
\frac{19}{30}
Reduce the fraction \frac{38}{60} to lowest terms by extracting and canceling out 2.
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