Tolong di jawab 3 1/4 + 1 2/5 + 1/4 adalah​

3 1/4 + 1 2/5 + 1/4
= 13/4 + 7/5 + 1/4
= 65/20 + 28/20 + 5/20
=98/20
= 4 18/20
= 4 9/10