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3 years ago

8

There is a group of student,1/3 are in elementary ,1/2 are in middle school and 15 are in high school. How many are in the group

?

1 answer:

OverLord2011 [107]3 years ago

7 0

1/2 + 1/3 = 3/6 + 2/6 = 5/6
we have 5/6 so 15 is 1/6 of the entire group
15 × 6 = 90

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