Répondre :
= 19/12 + ( 7/3 × 7 ) × 7 ÷ 7/4 × 19/12 × 1 × 3 × 65/42 + 221/90 × 7 + 23 ÷ 11
= 19/12 + 49/3 x 4 x 19/4 x 65/42 + 1547/90 + 23/11
= 19/12 + 8645/18 + 19087/990
= 110251/220
= 19/12 + 49/3 x 4 x 19/4 x 65/42 + 1547/90 + 23/11
= 19/12 + 8645/18 + 19087/990
= 110251/220