6 2/3 : 2 2/5 × 2 1/4.

6 2/3 : 2 2/5 x 2 1/4
= 20/3 : 12/5 x 9/4
= 20/3 x 5/12 x 9/4
= 900/144
= 300/48
= 75/12
= 25/4
= 6 1/4

semoga membantu ˚ω˚

20/3 x 5/12 x 9/4 = 25/4