Exercice1: calculer et donner le résultat de chacune de ces expression:A= 7/5-3/5x4/21B=4-4: 16/3C= .... Pergunta de ideia deSelenaGOMEZj

SelenaGOMEZj @SelenaGOMEZj

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Exercice1: calculer et donner le résultat de chacune de ces expression:

A= 7/5-3/5x4/21

B=4-4: 16/3

C= (1-1/7) : 12/5

D=( 1/4-1/5)x (7+37/9)

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MrEagle $A = \frac{7}{5} - \frac{3}{5} * \frac{4}{21} = \frac{4}{5} * \frac{4}{21} = \frac{16}{105}$
$B = 4 - 4 : \frac{16}{3} = 4 - \frac{4}{3} = \frac{8}{3}$
$C = (1 - \frac{1}{7}) : \frac{12}{5} = \frac{6}{7} : \frac{12}{5} = \frac{6}{7} * \frac{5}{12} = \frac{5}{14} <== SIMPLIFIER$
$D = ( \frac{1}{4} - \frac{1}{5}) * (7 + \frac{37}{9}) = \frac{1}{20} * \frac{100}{9} = \frac{5}{9} <== SIMPLIFIER$

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