Reciprocals
The reciprocal of 2/9
9/2
While taking inventory at her pastry shop, Lisa realizes that she had 1 2/3 of a box of baking powder yesterday, but the supply is now down to 1 1/6 of a box. How much more baking powder did Lisa have yesterday?
1/2 box more baking powder
1 1/2 X 2 1/3
3 1/2
You are going to the Norfolk Zoo with your little brother. The price of admission is $9.75 each. Once inside, you brother wants an elephant t-shirt that costs $12.35 and a tiger hat that costs $10.95. How much will your total trip cost you?
$42.80
2 3/4 divided by 1 2/3
1 13/20
If it takes 5/6 yards of fabric to make a dress, then how many yards will it take to make 8 dresses?
It will take 6 and 2/3 yards of fabric to make 8 dresses.
The reciprocal of 3/4
4/3
At the farmers' market, Robert bought 4 1/10 pounds of string beans and 1 7/10 pounds of lima beans. How many more pounds of string beans did Robert purchase?
2 1/10 pounds
2 3/4 X 4 2/3
12 5/6
Todd cuts one lawn a day for five days and deposits everything he earns into his savings account. If he makes $8.50 per lawn, how much money will he deposit in his account at the end of five days?
$42.50
1 3/4 divided by 2 2/3
21/32
A chocolate bar is 3/4 of an inch long. If it is divided into pieces that are 3/8 of an inch long, then how many pieces is that?
2 pieces
The reciprocal of 12/5.
5/12
At the Greenwood Zoo's bug exhibit, Mariana watches a millipede crawl for 10 3/4 minutes, stay still for a while, and then crawl for 4 3/4 minutes more. How much total time did Mariana spend watching the millipede crawl?
15 ½ minutes
4 4/5 X 3 1/2
16 4/5
Your mom asked you to go to the store to pick up some milk and cereal. She gives you $20.00 and asks you to bring back the change. If your total cost was $7.73, how much change will you need to give your mom?
$12.27
1 2/6 divided by 4 2/7
14/45
An electrician has a piece of wire that is 4 and 3/8 centimeters long. She divides the wire into pieces that are 1 and 2/3 centimeters long. How many pieces does she have?
The electrician has 2 and 5/8 pieces of wire.
The reciprocal of 1 1/2
2/3
Charlotte mailed a letter on Monday morning. The letter traveled 10 2/5 miles on Monday. It traveled 1 2/5 more miles on Tuesday, reaching its destination on Tuesday afternoon. How far did Charlotte's letter travel in all?
11 ⅘ miles
3 7/8 X 2 4/9
9 17/36
Sam and his sister want the new X-box game "Call of Duty: Ghost" which costs $66.50. They both agree to split the cost of the video game. How much will each have to pay?
$33.25
4 1/3 divided by 3 2/9
1 10/29
One batch of cookies contains 1 and 3/4 cups of melted chocolate. How many cups of melted chocolate are needed to make 8 batches of cookies?
14 cups
The reciprocal of 2 3/4
4/11
When Lucy had one cat, she needed to serve 1 3/5 cans of cat food each day. Now that Lucy has adopted a second cat, she needs to serve a total of 3 2/5 cans each day. How much extra food is needed to feed the second cat?
1 ⅘ cans
6 1/2 X 5 6/7
38 1/14
Mr. Jones spent $33.80 on purchasing glue for his students. If he has 23 students in his class, how much did he spend buying glue per student? Round your answer to the nearest penny.
$1.47
7 1/2 divided by 4 5/7
1 13/22
A piece of wood is 15 feet long. How many 3/4-foot sections can be cut from it?
20 pieces