Question

The error in the following calculation is in

• A. Step 3
• B. Step 1
• C. Step 2

Answer 1

The correct option is A Step 3

$\text{The find the incorrect step, we calculate}\text{the given sum:}$

$\text{Converting}1\frac{2}{7}\text{into fractional form, we}\text{get:}$

$1\frac{2}{7}=\frac{(1\times 7)+2}{7}=\frac{9}{7}$

$\text{Converting}3\frac{4}{7}\text{into fractional form, we}\text{get:}$

$3\frac{4}{7}=\frac{(3\times 7)+4}{7}=\frac{25}{7}$

$\text{Both}\frac{9}{7}\text{and}\frac{25}{7}\text{are like fractions.}$

$⟹\frac{9}{7}+\frac{25}{7}=\frac{(9+25)}{7}=\frac{34}{7}$

$\text{Now,}$

$Quotient\frac{Remainder}{Divisor}=MixedNumber$

$⟹\frac{34}{7}=4\frac{6}{7}$

$\text{Comparing the correct calculation with}\text{the given calculation, we find:}$


$\therefore \text{The error in the given calculation}$$\text{was made at step 3.}$