2 1 per 2 + 1,75 + 1 1 per 5=

2 1/2 + 1,75 + 1 1/5
= 5/2 + 175/100 + 6/5
=250/100 + 175/100 + 120/100
= 545/100
= 5 45/100
= 5 9/20

Jawaban :
A. Desimal
= 2,5 +1,75 +1,2
= 5,45

B. Pecahan
= 5/2 + 7/4 + 6/5
= 50/20 + 35/20 + 24/20
= 85/20 + 24/20
= 109/20
= 5 9/20

C.Persenan
= 250% + 175% + 120%
= 425% + 120%
= 545%

 semoga bermanfaat