Question

Compute the following mentally; find the exact answers (explain thinking in words)

Answer 1

Hello!

Explanation:

First, you convert by the mixed numbers into improper fractions.

$3\frac{1}{2}= \frac{7}{2}$

Then, apply by the fraction rule.

$\frac{a}{b}/\frac{c}{d}= \frac{a}{b}* \frac{d}{c}$

$\frac{7}{2}* \frac{2}{1}$

Next, you had to cancel by the 2.

$\frac{7}{1}$

Finally, divide by the numbers or multiply by the numbers too.

$\frac{7}{1}=7$

Answer: $\boxed{=7}$

Hope this helps!

Thanks!

-Charlie