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Sagot :

Bonjour, j'aimerais te dire que le signe (/), je l'ai utilisé pour écrire la fraction par exemple' 4/5 ça-veut-dire 4 sur 5.

Ex.42.

a. 4/5 = 4×3/5×3 = 12/15

b. 5/9 = 5×4/9×4 = 20/36

c. 0.5/2.6 = 0.5×10/2.6×10 = 5/26

d. 45/25 = 9×5/5×5 = 9/5

Ex 43.

a. 6/8 = 6:2/8:2 = 3/4

b. 10/25 = 10:5/25:5 = 2/5

c. 9/12 = 9:3/12:3 = 3/4

d. 42/14 = 42:14/14:14 = 3

Ex 44.

a. 8/5 = 72/45

b. 2/3 = 10/15

c. 1/6 = 3/18

d. 8/12 = 2/3

e. 6/10 = 12/5

f. 12/27 = 4/9

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