Answer:
19 4/5 cups of flour
Explanation:
So to solve this problem we need to multiply 6 3/5 by 3. To do this we will start by turning the compound fraction into an improper fraction. 6 3/5 is also equal to 33/5 and then we will multiply this by 3/1. To multiply fractions you multiply the numerators together and the denominators together. 33 times 3 is 99 and 5 times 1 is 5 which gives us 99/5 and we can simplify that to 19 4/5
I hope this helps and please don't hesitate to ask if there is anything still unclear!