Answer:
Step-by-step explanation:
[tex]\frac{5}{6}=\frac{15}{18}[/tex]
Cross multiply
5 *18 = 15 *6
90 = 90
True. They are in proportion
[tex]\frac{3}{5}=\frac{60}{100}[/tex]
Cross multiply
3*100 = 60 *5
300 = 300
True. They are in proportion
[tex]\frac{20}{14}=\frac{10}{7}[/tex]
Cross multiply
20*7 = 10*14
140 = 140
True. They are in proportion
[tex]\frac{4}{13}=\frac{10}{32}[/tex]
Cross multiply
4*32 = 10*13
128 ≠ 130
False. They are NOT in proportion
