2. Min had a mark of 26 out of 31 on a science test. That same day, his sister got a mark of 45 out of 52 on a math test. Explain how to find out who got the better mark.

Min: 26 ÷ 31 = 0.838709677
= 83%

Sister: 45 ÷ 52 = 0.865384615
= 86%

Min's sister got a higher mark.