Peter mixes 4 1/4 cups of orange juice, 2 1/4 cups of ginger ale, and 6 1/3 cups of strawberry lemonade to make some punch. what is the total number of cups of punch that peter makes?

Well first we can combine the OJ and the GA since they have the same denominator. When we combine it is 6 and 1/2 cups now we have 6 and 1/3 cups. What I would do now is combine the two 6 cups so we know we hae 12 cups and now combine the fractions. Convert both fractions to 12ths. 1/2=6/12 and 1/3=4/12. 6+4=10. 10/12 or 5/6. 

Peter has 12 and 5/6 cups of Punch

Hope I helped