Question

Which is the best for the sum 2/9+10/11?a. 0+0=0 b.1/2+1/2=1 c. 1+1=2d. 0+1=1

Answer 1

You have the following expression:

`(2)/(9)+(10)/(11)`

By definition, when you want to express a fraction as a decimal number, you must divide the numerator by the denominator. Knowing this, you get the following:

`\begin{gathered} (2)/(9)\approx0.22 \\ \\ (10)/(11)\approx0.90 \end{gathered}`

You can identify that:

`\begin{gathered} 0.22\approx0 \\ 0.90\approx1 \end{gathered}`

Based on the above, you can determine that the best estimate for the sum is:

`(2)/(9)+(10)/(11)\approx0+1=1`

The answer is option d:

`0+1=1`