A rational number is represented as an integer or a fraction.

He has difficulty expressing his emotions in words.

He showed his gratitude on his face.

Let's calculate using integers.

Calculating fractions is difficult.

Adding fractions is difficult.

The number of minutes required to make this dish is 30 minutes.

To declare an integer type variable, use 'int'.

He has a deep interest in number theory.

Please teach me how to convert improper fractions to reduced fractions.