Question

I have a problem with fractions. 7/7 - 2/5. I am supposed to estimate with compatible numbers.

Answer 1

Answer:

Using estimation with compatible numbers the solution is;

$\frac{1}{2}$

Explanation:

We want to estimate the fraction below with compatible numbers.

$\begin{gathered} \frac{7}{7}-\frac{2}{5} \\ \frac{7}{7}=1 \\ \frac{2}{5}\approx\frac{1}{2} \end{gathered}$

So, by estimation the fraction becomes;

$\begin{gathered} 1-\frac{1}{2} \\ =\frac{1}{2} \end{gathered}$

Using estimation with compatible numbers the solution is;

$\frac{1}{2}$