1.( 225% ÷ 125%)-(2,50×2,25) 2.( 6 1/8+2 3/4) - ( 2 3/4-1 1/2) 3.) 2 1/5÷(1,6÷2/3)-2/5 tolong dijawab pake cara diubah kebentuk persen.jangan asal jawab

1.225/ 100:125/100
=225/100×100/125
=225/125
=9/5×100
=180persen
selanjutnya
2,50×2,25
=(2,50×100)×(2,25×100)
=250×225
=56.250persen
dahg kemudian dikurang
=56.250-180
=56.070 persen itu baru no 1