Determine the number of fractions in the pattern below that are expressed in lowest terms.
Any explanation would be helpful!
Note that in every term, the numerator increases by 1, and the denominator decreases by 1.
Because the first term starts in 1 and increases by 1, the number of terms is the last term.
Can you take it from here?
Every other fraction has an even number on top and an even number on bottom, so those will reduce. I don't know about the others.