What equivalent fractions do the number lines show?

Hello there, I'm Steel42, and I am here to help you today.

Let's look at some key words:

Equivalent - somethings that is equal in amount, value, or function

Fractions - It represents a part of a whole

Now, our problem,

Q:How do you find equivalent fractions?
A: If you can multiply or divide the top and bottom numbers by the same number, there equal.

Lets see if any are equal:          
1 whole equals two 1/2            
1 whole equals three 1/3           
1 whole equals four 1/4             
1 whole equals five 1/5           
1 whole equals six 1/6              
1 whole equals seven 1/7         
1 whole equals eight 1/8

one 1/2 equals two 1/4
one 1/2 equals three 1/6
one 1/2 equals four 1/8
two 1/2 equals one whole

one 1/3 equals two 1/6
three 1/3 equals 1 whole

one 1/4 equals two 1/8
four 1/4 equals one whole
two 1/4 equals one whole

two 1/6 equals one 1/3
six 1/6 equals one whole
three 1/6 equals one 1/2
three 1/6 equals two 1/4
three 1/6 equals four 1/8

two 1/8 equals one 1/4
four 1/8 equals one 1/2
four 1/8 equals two 1/4
four 1/8 equals three 1/6
eight 1/8 equals one whole

Hope This helps you today : )

Maybe the answer is 20mm. all i really did was just multiply, which is obvious.