3 1/5:1 1/15-4 4/5x5/12 hasilnya brp?

3 1/5:1 1/15-4 4/5x5/12
16/5 : 16/5 - 24/5 × 5/2
16/5 × 16/5 -24/5 × 5/2
256/5 - 120/10
512/10 - 120/10
392/10
39 2/10

3 1/5 : 1 1/15 - 4 4/5 x 5/12
= 16/5 : 16/15 - 24/5 x 5/12
=16/5 : 16/15 = 16/5 x 15/16 = 3/1
=24/5 x 5/12 =2/1
=3/1 - 2/1 = 1/1


Maaf ya kalau salah....