The chef should use 5/9 cups of flour. To get this, multiply 5/6 by 6/9.
Multiplying Fractions via kwout
There are 3 simple steps to multiply fractions
1. Multiply the top numbers (the numerators).
2. Multiply the bottom numbers (the denominators).
3. Simplify the fraction if needed.
When you multiply a number by a fraction less than 1, the product is less than the number you started with.
When you multiply a number by a fraction greater than 1, the product is greater than the number you started with.
When you multiply a number by a fraction equal than 1, the product is equal to the number you started with.
See various types worksheets for multiplying fractions at Dadsworksheets.com.