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e=8 4/7÷2 6/7+12,(3)-7 1/3= .calculeaza​

Răspuns :

Răspuns:

e = 8

Explicație pas cu pas:

e = 8 4/7 : 2 6/7 + 12,(3) - 7 1/3 =

= (8·7+4)/7 : (2·7+6)/7 + (123-12)/9 - (7·3+1)/3 =

= 60/7 : 20/7 + 111/9 - ³⁾22/3 = 60/7 ·7/20 + 111/9 - 66/9 =

= 60·7/(7·20) + (111-66)/9 = 3 + 45/9 = 3 + 5 = 8

Răspuns:

[tex]8\frac{4}{7} : 2\frac{6}{7} + 12,(3) - 7 1/3 =\\\\\frac{8*7+4}{7} : \frac{2*7+6}{7} +\frac{123-12}{9} -\frac{7*3+1}{3} =\\\\ 60/7 : 20/7 + 111/9 - 22/3 =\\ \\60/7 *7/20 + 111/9 - 66/9 =\\\\ \frac{60*7}{7*20} +\frac{111-66}{9} =\\ \\3 + 45/9 =\\ \\3 + 5 =\\ \\8[/tex]