- anonymous

A student solved this problem and said the answer was 2 1/2 cups.
Rhonda picked 6 2/3 cups of blackberries. Her sister picked 4 1/6 How many more cups of blackberries did Rhonda pick than her sister?
Is the student's answer reasonable?
A.
Yes, the answer is reasonable.
B.
No, the answer is not reasonable. It should be about 1/2 cup.
C.
No, the answer is not reasonable. It should be about 4 cups.
D.
No, the answer is not reasonable. It should be about 10 cups.

- schrodinger

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- anonymous

@shinebrightlikeadimon

- anonymous

- anonymous

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## More answers

- anonymous

- welshfella

6 2/3 - 4 1/6

- anonymous

5/2

- welshfella

convert the 2/3 to 6th's then you can do the subtraction

- anonymous

guide me

- kittiwitti1

\[6\frac{2}{3}-4\frac{1}{6}\]Improper fraction both then make both sixths fractions and subtract

- anonymous

i think its c

- anonymous

i got 5/2

- welshfella

6 - 4 = 2
now you need to calculate
4/6 - 1/6 = ?

- welshfella

add the 2 to the result of the subtraction of the fractions

- anonymous

1/2

- anonymous

1/4

- welshfella

?? 1/2 or 1/4 ?

- anonymous

1/2

- welshfella

right now add the 2 and you have it

- kittiwitti1

Mixed to improper: \[\frac{(6\times4+3)}{3}-\frac
{(4\times6+1)}{6}\]

- kittiwitti1

Urgh. I forgot you could solve without improper conversion....

- welshfella

2 + 1/2 = ?

- welshfella

yes - in this case - its easier to just subtract the whole numbers first then the fractions after

- kittiwitti1

I was raised and taught that it was not logical or risky to do that ._.; *I have weird teachers*

- welshfella

yes - you can be too dogmatic
here its ok to do that

- welshfella

its perfectly safe as 6 > 4 and 2/3 > 1/6

- welshfella

well freez what do you think the answer is?

- anonymous

B

- anonymous

bbbbbbbbbbbbb

- kittiwitti1

no

- kittiwitti1

it is not b but nice try

- anonymous

c

- anonymous

cc

- kittiwitti1

No... what answer did you get from what @welshfella told you?

- welshfella

all you have to do is calculate 2 + 1/2

- kittiwitti1

Yes, and the answer is neither B nor C ; ;

- anonymous

a

- kittiwitti1

...yes. It's A. ; ;

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