Question

3 and 3/4 / -2 and 1/2

Answer 1

Answer: 3.125

Explanation:

I'm assuming and means + so the equation would be 3+3/4/-2+1/2. To solve this you use PEMDAS; parenthesis, exponents, multiplication, division, addition, subtraction. PEMDAS is an acronym for the system of operations and is the order of what pieces of the equation to solve first and is ordered as I wrote above. In other terms, pemdas tells you what to do first, like whether you divide or add first.

3/4/-2=-0.375

3-0.375+0.5

0.5-0.375=0.125

3+0.125=3.125

Hope this helps;)

Answer 2

-1 1/2

Explanation:

You want the quotient of 3 3/4 and -2 1/2.

Division

Division of mixed numbers often works best if they are first converted to improper fractions. Then the usual methods of division of fractions can be used. We know the end result must be negative, so we can do the arithmetic with that in mind.

`3(3)/(4)/-2(1)/(2)=-(15)/(4)/(5)/(2)=-(15)/(4)*(2)/(5)\\\\\\=-(30)/(20)=\boxed{-(3)/(2)=-1(1)/(2)}`

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