Répondre :
a. [tex] \frac{18*28}{35*27} = \frac{2*4}{5*3} = \frac{8}{15} [/tex]
b. [tex] \frac{15*36}{44*42} = \frac{5*9}{11*14} = \frac{45}{154} [/tex]
c. [tex] \frac{6*7}{10} * \frac{1}{12} = \frac{1*7}{10*2} = \frac{7}{20} [/tex]
b. [tex] \frac{15*36}{44*42} = \frac{5*9}{11*14} = \frac{45}{154} [/tex]
c. [tex] \frac{6*7}{10} * \frac{1}{12} = \frac{1*7}{10*2} = \frac{7}{20} [/tex]
18*28/35*27=2*4/5*3=8/15 15*36/44*42=5*9/11*14=45/154 6*7/10*1/12=1*7/10*2=7/20