Answer:
[tex]\frac {a}{b} = \frac {4}{7}[/tex]
Step-by-step explanation:
Step 1: Multiply both sides by 4
[tex]\frac{a}{4} = \frac{b}{7}[/tex]
[tex]\frac{a}{4} * 4 = \frac{b}{7} * 4[/tex]
[tex]a = \frac{4b}{7}[/tex]
Step 2: Divide both sides by 4
[tex]\frac {a}{b} = \frac {\frac{4b}{7}} {b}[/tex]
[tex]\frac {a}{b} = \frac {4}{7}[/tex]
Answer: [tex]\frac {a}{b} = \frac {4}{7}[/tex]
