Question

cum sa reduc asta, am uitat si numi pot aminti
x - $\frac{45}{100}x$

Answer 1

x- 45/100*x=100x/100-45x/100=55x/100=11x/20 sau 11/20*x

Este acelasi rezulat, caci 0.45= 45/100:

x-0.45x= x(1-0,45)=0.55x=55/100*x=11/20*x