Je n arrive pas l’exercice 78 aider moi svp.... Pergunta de ideia deMiguel031

May 2019 1 28 Report

Je n arrive pas l’exercice 78 aider moi svp

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Bonsoir,

A = 1/14 - 5/7
A = 1/14 - (5x2)/(7x2)
A = 1/14 - 10/14
A = -9/14

B = -7/10 + -5/100
B = (-7x10)/(10x10) + -5/100
B = -70/100 + -5/100
B = -75/100
B = (-75÷25)/(100÷25)
B = -3/4

C = -6 - 1/3
C = -6/1 - 1/3
C = (-6x3)/(1x3) - 1/3
C = -18/3 - 1/3
C = -19/3

D = -1/4 - 8/12
D = (-1x3)/(4x3) - 8/12
D = -3/12 - 8/12
D = -11/12

E = 4/15 + -7/3
E = 4/15 + (-7x5)/(3x5)
E = 4/15 + -35/15
E = -31/15

F = 13/12 - -5/6
F = 13/12 - (-5x2)/(6x2)
F = 13/12 - -10/12
F = 13/12 + 10/12
F = 23/12

Bonne soiree

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