Answer:
[tex]\frac{22}{7}[/tex]
Step-by-step explanation:
Let us convert all the numbers Jo wrote into decimals, then we can determine the greatest.
The first number is [tex]2\frac{1}{2}[/tex] . The form a/b is [tex]\frac{2*2+1}{2}=\frac{5}{2}=2.5[/tex]
The second number is [tex]3\frac{1}{7}[/tex] . The form a/b is [tex]\frac{3*7+1}{7}=\frac{22}{7}=3.14[/tex]
The third number is [tex]1\frac{5}{6}[/tex] . The form a/b is [tex]\frac{1*6+5}{6}=\frac{11}{6}=1.83[/tex]
The greatest number is [tex]\frac{22}{7}[/tex]
