What is the error in finding the sum given below: \displaystyle{ \begin{align} \frac{3}{10} + \frac{\left ( -1 \right)}{10} &= \frac{3 + 1}{10} \\[0.3 cm] &= \frac{4}{10}\\[0.3 cm] &= \frac{2}{5}....

August 23, 2024

$What is the error in finding the sum given below: \displaystyle{ \begin{align} \frac{3}{10} + \frac{\left ( -1 \right)}{10} &= \frac{3 + 1}{10} \\[0.3 cm] &= \frac{4}{10}\\[0.3 cm] &= \frac{2}{5}....$

The Error in Finding the Sum of Fractions

As an experienced high school mathematics teacher, I often encounter students struggling with the proper way to add fractions. One common mistake that I've observed is the error in the solution presented below:

``` \displaystyle{ \begin{align

math error fraction addition common denominator mathematical mistakes high school math

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