Question

How many cups would you need if you doubled the recipe?

Answer 1

We need to solve the following math problem,

`1(3)/(4)*2`

Step #1. Convert mixed numbers into improper fractions

`a(b)/(c)=(a*c+b)/(c)`
`1(3)/(4)=(1*4+3)/(4)=(7)/(4)`

Step #2. multiply 7/4 * 2

`(7)/(4)*2=(7)/(4)*(2)/(1)=(7*2)/(4*1)=(14)/(4)`

Step #3. Simplify

`(7*2)/(2*2)=(7)/(2)`

Step #4. Convert back to mixed number

`(7)/(2)=3\quad\mathrm{Remainder}\quad\:1`

then,

`\begin{gathered} =quotient(remainder)/(divisor) \\ \\ (7)/(2)=3(1)/(2) \end{gathered}`

Answer: 3 1/2 or option b.