Question

A 2/3 - 1,4 e B 0,7-0,777 determine A:B

Answer 1

Ola Maiira

2/3 - 1.4 = 2/3 - 14/10 = (20 - 42)/30 = -22/30 = -11/15 

0.7 - 0.777... = 7/10 - 7/9 = (9*7 - 7*10)/90 = -7/90 

A/B = (-11/15)/(-7/90) = (11/15)*(90/7) = 66/7 

.