tolong ya kerjakan pake cara cari 13 ok

3/5 x 100% = 60%
0.85 x 100% = 85%
60%- 20% + 85 % = 40 + 85 = 125/100 = 1 25/100
dikecilkan jadi 1 1/5 (b)

[tex]1.25 = \frac{125}{100} = 1 \frac{1}{4} [/tex]