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bonjour pourriez vous m'aider s'il vous plaît. ceci est un exercice de calcul littérale.mercii. calcule
A=-13/8+7/16
B=7/35+8/15
C=11/26-5/39
D=7/11+4/25
É=3/12-5/18+1
F-5/4+2/3-(-7)/5

merci encore.​

Sagot :

EPHTAMINA890

A=-13/8+7/16

=(-26+7)/16

=-19/16

B=7/35+8/15

=(105+280)/525

=385/525

=(385÷35)/(525÷35)

=11/15

C=11/26-5/39

=(429-130)/1014

=299/1014

=(299÷13)/(1014÷13)

=23/78

D=7/11+4/25

=(175+44)/275

=219/275

E=3/12-5/18+1

=(54-60+216)/216

=210/216

=(210÷6)/(216÷6)

=35/36

F=-5/4+2/3-(-7/5)

=-5/4+2/3+7/5

=(-75+40+84)/60

=49/60

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