0,305 dikurangi 1 per 5 dijadikan pecahan biasa lalu disederhanakan tolong bantu saya​

0,305 – 1/5
= 305/1000 – 1/5
= 305/1000 – (1/5 x 200/200)
= 305/1000 – 200/1000
= 105/1000 :5
= 21/200