If a baker doubles a recipe that calls for 6-2/3 cups of flour. how many cups will be needed in all?

Hey there!

The easiest way I could think to do this is by converting your mixed number to an improper fraction and multiplying the fraction by 2, or 2 over 1. 





To multiply fractions, you can just multiply the numerators and denominators and simplify, if applicable. 



Since you can't simplify this fraction in its improper form, just convert it back into a mixed number. 



So, your answer will be . 

Hope this helped you out! :-)