hasil dari 5/4-0,25+1 2/5+28% =

5/4 - 0,25 + 1 2/5 + 28%
= 5/4 - 25/100 + 7/5 + 28/100
= 125/100 - 25/100 + 140/100 + 28/100
= 100/100 + 140/100 + 28/100
= 268/100
= 67/25
= 2 17/25


Semoga membantu

1, 25-0, 25+1, 4+0, 28
=1+1, 68=2, 68 (Itu 1 2 per 5 atau12 per5 Aku pakai 1 2 per 5)