Simplification de fractions :
a) [tex] \frac{2}{3} [/tex] × [tex] \frac{3}{7} [/tex] × [tex] \frac{5}{11} [/tex] =
[tex] \frac{6}{21} [/tex] × [tex] \frac{5}{11} [/tex] =
[tex] \frac{30}{231} [/tex] = [tex] \frac{10}{77} [/tex]
b) [tex] \frac{3}{5} [/tex] × [tex] \frac{13}{7} [/tex] × [tex] \frac{5}{2} [/tex] =
[tex] \frac{39}{35} [/tex] × [tex] \frac{5}{2} [/tex] =
[tex] \frac{195}{70} [/tex] = [tex] \frac{39}{14} [/tex]
c) [tex] \frac{3}{2} [/tex] × [tex] \frac{2}{5} [/tex] × [tex] \frac{3}{11} [/tex] =
[tex] \frac{6}{10} [/tex] × [tex] \frac{3}{11} [/tex] =
[tex] \frac{18}{110} [/tex] = [tex] \frac{9}{55} [/tex]
d) [tex] \frac{6}{5} [/tex] × [tex] \frac{1}{14} [/tex] × [tex] \frac{7}{3} [/tex] =
[tex] \frac{6}{70} [/tex] × [tex] \frac{7}{3} [/tex] =
[tex] \frac{42}{210} [/tex] = [tex] \frac{1}{5} [/tex]
e) [tex] \frac{45}{6} [/tex] × [tex] \frac{1}{9} [/tex] × [tex] \frac{18}{7} [/tex] =
[tex] \frac{45}{54} [/tex] × [tex] \frac{18}{7} [/tex] =
[tex] \frac{810}{378} [/tex] = [tex] \frac{15}{7} [/tex]
f) [tex] \frac{6}{1} [/tex] × [tex] \frac{1}{88} [/tex] × [tex] \frac{11}{12} [/tex] =
[tex] \frac{6}{88} [/tex] × [tex] \frac{11}{12} [/tex] =
[tex] \frac{66}{1056} [/tex] = [tex] \frac{1}{16} [/tex]
g) [tex] \frac{5,5}{3} [/tex] × [tex] \frac{9}{7,7} [/tex] =
[tex] \frac{49,5}{23,1} [/tex] = [tex] \frac{15}{7} [/tex]
h) [tex] \frac{6}{1} [/tex] × [tex] \frac{2,8}{3} [/tex] × [tex] \frac{5}{0,7} [/tex] =
[tex] \frac{16,8}{3} [/tex] × [tex] \frac{5}{0,7} [/tex] =
[tex] \frac{84}{2,1} [/tex] = 40
i) [tex] \frac{0,6}{1} [/tex] × [tex] \frac{2}{3,6} [/tex] =
[tex] \frac{1,2}{3,6} [/tex] = [tex] \frac{1}{3} [/tex]
j) [tex] \frac{17}{12,5} [/tex] × [tex] \frac{2,5}{1,7} [/tex] =
[tex] \frac{42,5}{21,25} [/tex] = 2
J'espère t'avoir aidé.