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October 21, 2014

October 21, 2014

Posted by **catalina** on Monday, October 1, 2012 at 7:04pm.

1/5 have red hair. of these 3/4 have green eyes. what fraction of Mo's dolls

collection have both red hair and green

eyes?

2) ( Use measurement conversions) find 1/2 of 1/4 of a gallon.

3) Cheryl is organizing her movie collection. if each movie casee is 3/4 inches wide, how many movies can fit in a 5 ft shelf.

can someone please explain and show me how they got their answers??? Thank you :)

- Math 7th grade -
**Ms. Sue**, Monday, October 1, 2012 at 7:11pm1) Multiply:

1/5 * 3/4 = 3/20

2) Multiply as I showed you above.

3) Divide:

60/(3/4) = 60 * (4/3) = ?

- Math 7th grade -
**catalina**, Monday, October 1, 2012 at 7:19pmthat would equal 45?

- Math 7th grade -
**catalina**, Monday, October 1, 2012 at 7:20pmbut why would you multiply and then divide?

- Math 7th grade -
**catalina**, Monday, October 1, 2012 at 7:22pmI mean 80 not 45

- Math 7th grade -
**Ms. Sue**, Monday, October 1, 2012 at 7:23pmNo. The answer to number 3 is not 45. Multiply (60/1) * (4/3).

When we divide fractions, the divisor must be inverted and then multiplied.

http://www.mathsisfun.com/fractions_division.html

- Math 7th grade -
**catalina**, Monday, October 1, 2012 at 7:28pmso could you help me with number 2???

- Math 7th grade -
**catalina**, Monday, October 1, 2012 at 7:29pmoh sorry my bad thank you ms.sue :))

- Math 7th grade -
**Ms. Sue**, Monday, October 1, 2012 at 7:39pmYou're welcome, Catalina.

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