posted by on .

1) of the dolls in mo's doll collection,
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 - ,

1) 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 - ,

that would equal 45?

• Math 7th grade - ,

but why would you multiply and then divide?

• Math 7th grade - ,

I mean 80 not 45

• Math 7th grade - ,

No. 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 - ,

so could you help me with number 2???

• Math 7th grade - ,

oh sorry my bad thank you ms.sue :))

• Math 7th grade - ,

You're welcome, Catalina.