Question

alguem pode me ajudar​

Answer 1

Resposta:

6)a) 7/9 - 5/9 = 2/9      

 b) 9/5 - 2/5 = 7/5              

c) 8/3 - 3/6 = 16/6 - 3/6 = 13/6

 d) 4/5 - 3/6 =  24/30 - 15/30 = 9/30

6)a) 1/2 x 8/8 = 8/16 : 8 = 1/2  

b)14/7 x 2/5 = 28/45      

c) 3/7 x 1/5=  3/45 : 3 = 1/15          

d) 3/5 x 1/2 = 3/10

7)a) 7/8 : 4/7 = 7/8 x 7/4 = 49/32    

b) 18/4 : 6/5 = 18/4 x 5/6 = 90/24 : 3 = 30/ 8    

c) 9/7 : 8/3 = 9/7 x 3/8 = 27/56

d) 17/4 : 46/13 = 17/4 x 13/46 = 221/184

Espero ter ajudado.