According to the norm, the worker must make 60 parts. He made 25 parts. What part of the norm did the worker fulfill?

To find out which part of the norm the worker fulfilled, the number of parts that the worker made, that is, 25 pieces, must be divided by the number of parts that needed to be made at the rate, that is, 60 pieces.

We get 25/60, now we need to reduce the fraction by dividing the numerator and denominator by 5, and the result will be 5/12. That is, the worker has fulfilled one-fifth of the quota of twelve.

Answer: 5/12