Problem
QUESTION 7 Find percent notation for the fraction notation in the sentence. \( \frac{39}{50} \) of those diagnosed with a certain disease survive at least five years. \( 78 \% \) \( 780 \% \) \( 7.8 \% \) \( 7800 \% \)
Solution
Step 1 ：\( \frac{39}{50} \times 100\% \)
Step 2 ：\( 78 \% \)
