Estimate

10/12 − 3/8

using benchmark values. Your equation MUST show the estimate for each fraction and the final estimate for the expression. (Explain and estimate)

Step-by-step explanation:

Given expression:

To estimate the given expression using the benchmark values.

Solution:

We can plot the given expression in a number line.

From the number lines, we can see that,

is closest to 1. So, we can estimate the fraction as 1 which is the benchmark value for the fraction.

is closest to . So, we can estimate this fraction as which is the benchmark fraction.

So, the expression can be re-written as:

⇒   (Answer)

the answer would be c:   ax + b = ax + c

step-by-step explanation: