Berapa hasil persen dri A. 1/4+2/8= B. 9/10+2/5-1/4=

A. ¼ + 2/8 = 2/8 + 2/8 = 4/8
Bentuk Persen = 4/8 × 100 = 50%

B. 9/10 + 2/5 - ¼ = 18/20 + 8/20 - 5/20 = 21/20
Bentuk Persen = 21/20 × 100 = 105%

Maaf kalau salah ^_^

A)1/4+2/8
    =2/8+2/8
    =4/8
    =1/2
    =1/2 × 100%
    =50%
B)9/10+2/5-1/4
    =18/20 + 8/20 - 5/20
     =26/20 - 5/20
     =21/20
     =21/20 × 100%
     =105%