Question

3.4 15 2Estimate:4/5 - 1/2 =

Answer 1

We have to estimate

`(4)/(5)-(1)/(2)`

Let's use the LCM of 5 and 2, i.e 10 as a common denominator, we have;

`\begin{gathered} (4(2)-1(5))/(10) \\ =(8-5)/(10) \\ =(3)/(10) \end{gathered}`

Thus the correct answer is 3/10