Question

Evaluate the expression shown below and write your answer as a fraction in simplest form. 3 (-20 8 Answer: Submit Answer attempt 1 out of 2 O​

Answer 1

Answer:

$-\frac{1}{40}$

Step-by-step explanation:

To evaluate $-\frac{3}{8} - (-\frac{7}{20})$, start by opening the bracket.

When opening the bracket, we would be multiplying negative sign by negative sign, which equal positive sign.

Thus,

$-\frac{3}{8} + \frac{7}{20}$

Solve further by performing addition operation to make both fractions one

The common denominator of 8 and 20 is 40,

$\frac{5(-3) +2(7)}{40}$

$\frac{-15 + 14}{40}$

$\frac{-1}{40} = -\frac{1}{40}$