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anonymous
 one year ago
A stack of bricks is 3 1/2 feet high. If each brick is 1 3/4 inches high, how many bricks are in the stack?
2
12
24
28
anonymous
 one year ago
A stack of bricks is 3 1/2 feet high. If each brick is 1 3/4 inches high, how many bricks are in the stack? 2 12 24 28

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mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1You need to divide 3 1/2 by 1 3/4

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Change each mixed numeral into a fraction, then divide the fractions.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Explain to me how do i do that please ? @mathstudent55

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1This is the operation you need to do. dw:1436921214687:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Do you know how to change a mixed numeral into a fraction?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1No. We will flip the second fraction when we divide the fractions, but we're not there yet.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1The first step is to rewrite both mixed numerals as fractions. This is how you do it. I will use a different example, not the mixed numerals from our problem.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1dw:1436921384449:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1dw:1436921416023:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0okay so 3 1/2 = 7/2 ?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1dw:1436921475247:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Exactly. You learn fast.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Thank you :) You are a great teacher

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1dw:1436921553999:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Thanks. Do you follow so far? We now have rewritten both mixed numerals as fractions.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Now we can do the division. To divide two fractions, rewrite the first fraction as it was. Then change the division to a multiplication. Then flip the second fraction. Now multiply the fractions you have.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1dw:1436921765532:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1dw:1436921813528:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1To multiply fractions, multiply the numerators together and multiply the denominators together. Then reduce the fraction if possible.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1dw:1436922065559:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1You're welcome. The answer is 2 bricks.
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