Bonsoir,
22) 5/100 = 0.05
705/100 = 7.05
donc 7 + 5/100 = 7.05 = 705/100
75/10 = 7.5 et 5/10 = 0.5
donc 7.5 = 75/10 = 7+ 5/10
23) 25/10 = 2.5
50/100 = 0.5
donc 2.5 = 25/10 = 2 + 50/100
2/10 = 0.2 et 7/100 = 0.07
donc 4.27 = 4 + 2/10 + 7/100
207/1000 = 0.207
donc 4.207 = 4 + 207/1000
