Question

Select all equations that are true. A. 3/4 - 1/2 = 1/4B. 9/16 - 4/8 = 5/8C. 7/8 - 3/4 = 1/8D. 7/15 - 1/3 = 6/15E. 1/2 - 1/20 = 10/20

Answer 1

Answer:

A. 3/4 - 1/2 = 1/4

C. 7/8 - 3/4 = 1/8

Explanation:

To determine the equations that are true, evaluate each of them.

$\begin{gathered} \frac{3}{4}-\frac{1}{2}=\frac{3-2}{4}=\frac{1}{4} \\ \frac{9}{16}-\frac{4}{8}=\frac{9-8}{16}=\frac{1}{16}\neq\frac{5}{8} \end{gathered}$

Continuing in like manner:

$\begin{gathered} \frac{7}{8}-\frac{3}{4}=\frac{7-6}{8}=\frac{1}{8} \\ \frac{7}{15}-\frac{1}{3}=\frac{7-5}{15}=\frac{2}{15}\neq\frac{6}{15} \\ \frac{1}{2}-\frac{1}{20}=\frac{10-1}{20}=\frac{9}{20}\neq\frac{10}{20} \end{gathered}$

Therefore, options A and C are true.