Mathematics: What is 3/10 ÷ by 4/5

What is 3/10 ÷ by 4/5 - id310457596308, christinaS3725

Ответ:

ineedhelp2285

02.02.2022

$\frac{3}{10}$ ÷ $\frac{4}{5}$ equals $\frac{3}{8}$ .

First, apply this rule: a ÷ $\frac{b}{c}$ = a × $\frac{c}{b}$ . Your problem should look like: $\frac{3}{10}$ × $\frac{5}{4}$ .
Second, apply this rule: $\frac{a}{b}$ × $\frac{c}{d}$ = $\frac{ac}{bd}$ . Your problem should look like: $\frac{3x5}{10x4}$ .
Third, simplify 3 × 5 to get 15. Your problem should look like: $\frac{15}{10x4}$ .
Fourth, simplify 10 × 4 to get 40. Your problem should look like: $\frac{15}{40}$ .
Fifth, simplify. Your problem should look like: $\frac{3}{8}$ which is the answer.