Bonjour pourriez vous m'aider s'il vous plaît
Rendre les
fractions
suivantes
irréductibles :
4/8
5/35
15/30
10/100
52/91
75/100
468/180
60/100
216/948
1620/1350
Rendre les
fractions
suivantes
irréductibles :
4/8
5/35
15/30
10/100
52/91
75/100
468/180
60/100
216/948
1620/1350
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Bonjour,
4/8 =1/2
5/35=1/7
15/30 = 1/2
10/100 =1/10
52/91 = 4/7 ( divisé par 13)
75/100= 15/20= 3/4
468/180 = 234/90= 117/45= 39/15= 13/5
60/100 = 6/10= 3/5
216/948 = 108/ 474 = 54/237 = 18/79
1620/1350 = 162/135 = 54/45= 18/15 = 6/5
Salut !
4/8 = (4×1)/(4×2) = 1/2
5/35 = (5×1)/(5×7) = 1/7
15/30 = (15×1)/(15×2) = 1/2
10/100 = (10×1)/(10×10) = 1/10
52/91 = (13×4)/(13×7) = 4/7
75/100 = (25×3)/(25×4) = 3/4
468/180 = (36×13)/(36×5) = 13/5
60/100 = (20×3)/(20×5) = 3/5
216/948 = (12×18)/(12×79) = 18/79
1620/1350 = (270×6)/(270×5) = 6/5