Question

Sendo A= 6,333... e B= 0,777... , Determine A- B

Answer 1

A)6,333... = 6 + 3/9 = 9*6+3/9 = 54+3/9 = 57/9 SIMPLIFICA= 19/3
B)0,7777.... =  7/9

A - B = 19/3 - 7/9 = 
M.M.C = 9
3*19/9 - 1*7/9 = 
57/9 - 7/9 = 50/9
Resposta 50/9