hasil dari 9/20 + 0,872 = ...

= 9/20 + 0,872
= 9/20 + 872/1000
= 450/1000 + 872/1000
= 1.322/1000
= 1 322/1000
= 1 161/500

9/20=9 dikali 5
20 dikali 5
=45/100
=0,45(diubah ke desimal)
=0,45 + 0,872
=1,322