tolong dijawabya pakai cara no.3-no5

3) 3 3/4 ÷ 1 8/10
= 15/4 ÷ 18/10
= 15/4 x 10/8
= 150/32 = 4 22/32 = 4 11/16

4) 2 4/6 ÷ 2 2/9
= 16/6 ÷ 20/9
= 16/6 x 9/20
= 144/30 = 4 24/30 = 4 4/5

5) 3 1/3 ÷ 1 5/7 
= 10/3 ÷ 12/7
= 10/3 x 7/12
= 70/36 = 1 34/36 = 1 17/18