Multiplying Fractions
6 xx1/3 =
2
2 div 1/4 =
8
What is the reciprocal of 8/9?
9/8
The pie needs to bake at a temperature of 350 degrees. If your oven is currently at 125 degrees, how much hotter does it need to get?
225 degrees hotter.
1/6 xx 4 =
2/3
4/7 div 5/7 =
4/5
-1/4
If you cut a pie into 8 equal pieces, and eat 1/2 one piece. What fraction of the pie did you eat?
1/16
4/5 xx -3/4 =
-12 / 20 = -3/5
-8 div 2/3 =
-12
A number multiplied by it's reciprocal is always equal to ____.
1
Each pie contains 3/4 cup of sugar. How much sugar is in 8 pies?
8 x 3/4 = 6 cups of sugar.
1/3 xx 2/3 xx2/5 =
4/45
What is x?
3/5 div x = 1
x = 3/5
Another term used for reciprocal is the multiplicative _______.
inverse.
The apple pie calls for 4 apples. If you can cut 2 apples in 45 seconds, at that rate, how many MINUTES will it take you to cut 4 apples?
1 and a half minutes
-5/6 xx 2/5 xx6/11=
-2/11
what is y?
3/5 div y = 2
3/10
Which has the greatest reciprocal:
1/5 or 2/5 or 3/10 or 5/10
Mr. Lefkowitz has a big family - 50 people are eating dinner with him. Everyone wants a piece of pie. If there are 8 pieces per pie, how many pies must Mr. Lefkowitz bake?
6 pies gets me 48 pieces. So I'll have to bake 7 pies, and have 6 pieces left over!