1.6÷1.25=8/5÷5/4=8/5×4/5=32/25
8/5÷5/4=8/5X4/5=32/25=128/100=1.28
16 125— ÷ — =10 100 16 100*8— × — = 10 125*8 16 800— × — = 10 1000 =1.28
