Helping my Sister with her math

My younger sister had to solve mathematics problems which were very difficult for her. My dad tried to explain to her what the fractions were, but he didn't succeed. My dad tried to explain it to her in a very serious and difficult way. Then I decided to help. My dad had to go somewhere so I came to my sister and tried to explain it to her. I tried to explain it to her in a funny and easy way, so I succeeded. When my dad came back, he saw that my sister knew a lot more about fractions. I thought it was nice because I helped my sister with her math homework.