Sagot :
Bonsoir,
A=3/7-(2/7)/(4/49 )
priorité à la division
(2/7)/(4/49 ) = 2/7* 49/4
= 98/ 28 = 49/14
3/7 - 49/14
= 6/14 -49/14
= - 43/14
Bonsoir,
A=3/7-(2/7)/(4/49 )
priorité à la division
(2/7)/(4/49 ) = 2/7* 49/4
= 98/ 28 = 49/14
3/7 - 49/14
= 6/14 -49/14
= - 43/14