Mathématiques

Question

Aidez-moi SVP

Effectuer les calculs suivants et donner le résultat sous la forme d'une fraction simplifiée :

A=3/36x45/2    B=36/35x21/32    C=1/15x27/4    D=20/27x63/20    E=25/36x6/35    F=80/63X9/80    G=16/35x35/32    H=63/100x100/21


Merci d'avance

2 Réponse

  • A=3/36x45/2
    A=135/72
    A=15x9/9x8
    A=15/8

    B=36/35x21/32
    B=756/1120
    B=14x54/14x80
    B=54/80
    B=27x2/20x2
    B=27/20

    C=1/15x27/4
    C=27/60
    C=3x9/3x20
    C=9/20

    D=20/27x63/20
    D=1260/540
    D=18x70/18x30
    D=70/30
    D=10x7/10x3
    D=7/3

    E=25/36x6/35
    E=150/1260
    E=10x15/10x126
    E=15/126
    E=3x5/42x3
    E=5/42

    F=80/63x9/80
    F=720/5040
    F=60x12/60x84
    F=12/84
    F=6x2/6x14
    F=2/14=1/7

    G=16/35x35/32
    G=560/1120
    G=40x14/40x28
    G=14/28=2x7/4x7
    G=2/4=1/2

    H=63/100x100/21
    H=6300/2100
    H=100x63/100x21
    H=63/21=7x9/7x3=9/3
    H=3x3/3x1
    H=3/1=3
  • je te met directement les réponses A=135/72 ÷: 3/3=45/24

                                                            B= 1260/1120 ÷140/140 =9/8

                                                             C=27/60 ÷ 3/3 =9/20

                                                            D=63/20

                                                            E=5/42

                                                            F=9/63 ÷ 3/3 =3/11

                                                            G=16/32 ÷ 4/4 =4/8 ÷ 4/4 =1/2

                                                            H=63/21 ÷3/3 =11/7

    et voila j'éspere que je t'ai bien aidé

Autres questions