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A= 2sur13 moins 5sur13 diviser par10sur16

Sagot :

A=2/13-5/13/(10/16)
   =2/13-5/13*16/10
   =2/13-5/13*8/5
   =2/13-8/13
   =-6/13
[tex]A = \frac{2}{13} - \frac{5}{13} : \frac{10}{16} = \frac{2}{13} - \frac{5}{13} * \frac{16}{10} = \frac{2}{13} - \frac{80}{130} = - \frac{6}{13} <== Simplifier [/tex]