Question

Use the correct language to explain the difference between the expressions: 

"It is the fifth of December"

"You are the fifth in the row"

"I want a fifth of the pizza"

What types of numbers are we dealing with in these expressions?

Answer 1

“It is the fifth of December” is a date, the fifth day of December.

“You are the fifth in the row” is about the ordinal number in the row, the person is at number five in the row.

“I want a fifth of the pizza” means that the person needs a 1/5 fraction of the pi zza.