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January 31, 2015

January 31, 2015

Posted by **Isabel** on Thursday, November 13, 2008 at 8:29pm.

What is the smallest number of each fruit Mrs. Livingston needs to buy in order to have an equal number of oranges and grapefruits?

a.12

b.20

c.30

d.60

- 4th Grade Math -
**DrBob222**, Thursday, November 13, 2008 at 8:55pmThe easy way is to take the answers and see if they are divisible by 10 and 6 to give a whole number (since the two fruits are sold by bags and not apiece).

12, not divisible by 10.

20, not divisible by 6.

30, divisible by 10 and 6.

60, divisible by 10 and 6.

To check ourself, 30 oranges can be bought in 30/10 = 3 bags and 30 grapefruit can be bought in 30/6 = 5 bags.

60 oranges can be bought in 60/10 = 6 bags while 60 grapefruit can be bought in 60/6=10 bags.

But the answer is 30 fruit since that is smaller than 60.

- 4th Grade Math -
**Jolie**, Wednesday, November 19, 2008 at 6:36pmI need to explain how i got theese prices.

- 4th Grade Math -
- 4th Grade Math -
**Isabel**, Thursday, November 13, 2008 at 9:03pmThank you SOOOO much!

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