Question

Evaluate 3-2 1/2 divide by 1 1/4 + 7 1/12

Answer 1

Start to convert the mixed numbers into fractions

`2(1)/(2)=(5)/(2)`
`\begin{gathered} 1(1)/(4)=(5)/(4) \\ 7(1)/(12)=(85)/(12) \end{gathered}`

then by the order of the operations, we make the division

`((5)/(2))/((5)/(4))=(5\cdot4)/(5\cdot2)=2`

then,

`\begin{gathered} 3-2+7(1)/(12) \\ 1+7(1)/(12) \\ 1+(85)/(12) \\ (97)/(12) \end{gathered}`