Question

2.Calculaţi:
b)2 întregi 5\10 +2,3(4) +3,(6)+2,4=

Answer 1

2 5/10 + 2,3(4) + 3,(6) + 2,4 =

= (2×10+5)/10 + (234-23)/90 + (36-3)/9 + 24/10 =

= 25/10 + 211/90 + 33/9 + 12/5 =

= 5/2 + 211/90 + 11/3 + 12/5 =

= 5×45/90 + 211/90 + 11×30/90 + 12×18/90
= 225/90 + 211/90 + 330/90 + 216/90 =

= 982/90 =

= 10,9(1)