1. x = = 3

2. – =

3. – – =

4. x =

5. x =

6. Since you want to make twice as many cookies, you need twice as much sugar: x cup = cup

7. Since you want to make three times as many cookies, you need three times the amount of vanilla: x teaspoon = teaspoon

8. x =

9. First we have to find out what fraction of the m&m’s in the bowl are peanut m&m’s. This is a subtraction problem because we were told that two-fifths of all the m&m’s are chocolate: The fraction that are peanut m&m’s must be – = . The fraction of these m&m’s that are yellow is one-fifth. So the fraction of all the m&m’s in the bowl that are yellow peanut m&m’s is x =

10. This is another subtraction problem. The fraction representing all the m&m’s in the bowl is . The fraction that is red chocolate is (the answer to problem 8), and the fraction that is yellow peanut is (the answer to Problem 9). The remainder must therefore be:

– – =