Answer: 18:3 and 6:1 are equivalent ratios because those are equivalent fractions.
Explanation
If we get the factors of the first ratio, we will see that:
• 18: 6 and 3, and 18 and 1.
,• 3: 3, and 1.
Thus, if we display the ratios in fractions:
[tex]\frac{18}{3}=\frac{6}{1}[/tex]And then we write them in factors, we get:
[tex]\frac{3\cdot6}{3\cdot1}=\frac{6}{1}[/tex]Simplifying:
[tex]\frac{3}{3}\cdot\frac{6}{1}=\frac{6}{1}[/tex][tex]1\cdot\frac{6}{1}=\frac{6}{1}[/tex][tex]\frac{6}{1}=\frac{6}{1}[/tex]Thus, 18:3 and 6:1 are equivalent ratios.