Question

Identify the error made in the step number in the following calculation:

• A. Step 3
• B. All of the above
• C. Step 2
• D. Step 1

Answer 1

The correct option is A Step 3

The find the incorrect step, we have to calculate the given sum:
$\frac{4}{10}+\frac{21}{100}$

Both of the fractions are unlike fractions.
So, they must be onverted into like fractions with denomiantor 100.

$\text{We can express}\frac{4}{10}as:$

$\frac{4}{10}=\frac{4\times 10}{10\times 10}$ = $\frac{40}{100}$

Now, on adiditon, we get:

$\frac{40}{100}+\frac{21}{100}=\frac{40+21}{100}=\frac{61}{100}$

Comparing the correct calculation with the given calculation, we find:


The error in the given calculation was made at step 3.