Kara’s class had 9 bottles of glue. They used about 2/3

of each of 4 of the bottles and about 3/4
of another bottle. Then they found 2 and 1/2
more bottles of glue. How many full bottles of glue does the class have now?

3 answers

Looks to me like just 4+2 = 6 since the others had all been used some.
I assume that the author of this poorly worded question simply wanted
us to add up all those partially fill bottles, apparently topping them up
So we have:
4(2/3) + 3/4 + 2 + 1/2
= (32 + 12 + 24 + 6)/12
= 74/12
= 6 1/6 bottles
hmmm. I think that you have to subtract the bottles used, and then add in the new ones:
9 - 2/3 * 4 - 3/4 + 2 1/2 = 8 1/12
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