Question

Practice: Fraction Addition and Subtraction M -Practice - Level E5O Which cards are equivalent to783-21 21821510? Choose ALL the correct answers.3115 7102121-10521410

Answer 1

Answer:

8/12 - 3/12

5/12

Explanation:

The given expression is

$\frac{2}{3}-\frac{1}{4}$

We can solve this subtraction as follows

$\frac{2}{3}-\frac{1}{4}=\frac{2(4)-3(1)}{3(4)}=\frac{8-3}{12}=\frac{5}{12}$

Therefore, the expression is also equivalent to 5/12.

For the other options, we can solve the subtractions, if one option is equal to 5/12, the option is correct

$\begin{gathered} \frac{6}{12}-\frac{4}{12}=\frac{6-4}{12}=\frac{2}{12} \\ \\ \frac{8}{12}-\frac{3}{12}=\frac{8-3}{12}=\frac{5}{12} \\ \\ \frac{2}{7}-\frac{1}{7}=\frac{2-1}{7}=\frac{1}{7} \\ \\ \frac{1}{7}=\frac{1}{7} \\ \\ \frac{2}{12}=\frac{2}{12} \\ \\ \frac{5}{12}=\frac{5}{12} \end{gathered}$

Therefore, the correct options are

8/12 - 3/12

5/12