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Sagot :

EPHTAMINA890

A=-3/5+9/20

=(-12+9)/20

=-3/20

B=5/12-3/8

=(40-36)/96

=4/96

=(4÷4)/(96÷4)

=1/24

C=-2-(-4/3)

=-2+4/3

=(-6+4)/3

=-2/3

D=14/25-7/20-1/6

=14/25+(-42-20)/120

=14/25-62/120

=14/25-(62÷2)/(120÷2)

=14/25-31/60

=(840-775)/1500

=65/1500

=(65÷5)/(1500÷5)

=13/300

E=-5/8-(-5/24)+5/12

=-5/8+5/24+5/12

=(-15+5+10)/24

=0/24

=0

Réponse:

Bonsoir

A= -3/5 +9/20 en simplifiant on trouve 3/20

B= 5/12-3/8 = 4/96 = 1/24

C= -2--4/3 = -2+4/3 = 2/3

D= 14/25 -7/20 -1/6 = 14/25 -62/120 = 14/25 -31/60

soit 65/1500 ,= 13/300

E= -15+5+10/24 = 0

voilà j espère t avoir bien aidé. je te souhaite bon courage et bonne continuation ❤

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