What I did is to add 0.52
+0.15
then try to find what could equal the same amount with 0.52

Let's solve ~




I hope you understood the procedure, please let me know if you have any doubts
4/5 = 0.80
1/5 + 3/5 = 3/5 + 1/5
I’m not sure but when I check it show 6