Question

Using the property $\frac{a}{b}=\frac{ak}{bk}$ fill in the blanks:$\frac{5}{7}=\frac{....}{28}=\frac{35}{...}$

Answer 1

$\frac{a}{b}=\frac{ak}{bk}$, $\frac{5}{7}=\frac{x}{28}=\frac{35}{y}$

For $x:$ $\frac{5}{7}=\frac{5\times 4}{7\times 4}=\frac{20}{28}$

$\therefore x=20$

For $y:$ $\frac{5}{7}=\frac{35}{y}$

$\therefore \frac{5}{7}=\frac{5\times 7}{7\times 7}=\frac{35}{49}$

$\therefore y=49$.