Mathématiques

Question

Salut j'ai besoin d'aide en maths
Fraction simplifier

a)
[tex] \frac{5}{4} \div \frac{6}{2 } = [/tex]
b)
[tex] \frac{8}{7} \div \frac{9}{3} = [/tex]
c)
[tex] \frac{9}{2} \div \frac{3}{4} = [/tex]
d)
[tex] \frac{3}{7} \div \frac{5}{11} = [/tex]
e)
[tex] \frac{5}{9} \times \frac{6}{8} = [/tex]
f)
[tex] \frac{4}{6} \times 8 = [/tex]
g)
[tex] \frac{3}{7} \times \frac{8}{2} = [/tex]
h)
[tex]6 \times \frac{11}{10} = [/tex]
merci d'avance




1 Réponse

  • Bonjour


    Fraction simplifier :


    5/4 : 6/2

    = 5/4 x 2/6

    = 5/4 x 2/(3 x 2)

    = 5/4 x 1/3

    = 5/(4 x 3)

    = 5/12

    8/7 : 9/3

    = 8/7 x 3/9

    = 8/7 x 3/(3 x 3)

    = 8/7 x 1/3

    = 8/(7 x 3)

    = 8/21


    9/2 : 3/4

    = 9/2 x 4/3

    = 9/3 x 4/2

    = (3 x 3)/3 x (2 x 2)/2

    = 3 x 2

    = 6

    3/7 : 5/11

    = 3/7 x 11/5

    = (3 x 11)/(7 x 5)

    = 33/35


    5/9 x 6/8

    = (5 x 6)/(9 x 8)

    = (5 x 2 x 3)/(3 x 3 x 2 x 4)

    = (5 x 6)/(12 x 6)

    = 5/12


    4/6 x 8

    = (4 x 8)/6

    = (2 x 2 x 8)/(2 x 3)

    = 16/3


    3/7 x 8/2

    = 3/7 x (2 x 4)/2

    = 3/7 x 4

    = (3 x 4)/7

    = 12/7


    6 x 11/10

    = (2 x 3 x 11)/(2 x 5)
    = 33/5

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