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icang [17]
3 years ago
9

I need help! I forgot how to do this!! Please help!

Mathematics
2 answers:
Dovator [93]3 years ago
8 0

First change the mixed fraction into an improper fraction

7 1/2 = 15/2

Next, change multiply 2 to both numerator and denominator

15 x 2 = 30

2 x 2 = 4

30/4

Each piece needs 3/4 of an inch. Divide 30 with 3

30/3 = 10

c) 10 pieces is your answer

hope this helps

soldier1979 [14.2K]3 years ago
5 0

namely how many times does 3/4 go into 7½.


let's first off convert the mixed fraction to an improper one, and then divide.


\bf \stackrel{mixed}{7\frac{1}{2}}\implies \cfrac{7\cdot 2+1}{2}\implies \stackrel{improper}{\cfrac{15}{2}}\\\\ -------------------------------\\\\ \cfrac{15}{2}\div \cfrac{3}{4}\implies \cfrac{15}{2}\cdot \cfrac{4}{3}\implies \cfrac{15}{3}\cdot \cfrac{4}{2}\implies \cfrac{5}{1}\cdot \cfrac{2}{1}\implies 10

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