Répondre :

7/3 - 2/3 : 8/7 = 42/24 = 21/12 = 7/4

÷
7/3 - 2/3 ÷ 8/7

7/3 - 2/3 x 7/8

7/3 - 14/24

56/24 - 14/24

42/24= 2x21/2x12= 3x7/3x4= 7/4