Question

Calculati 3,0(6)-1 1/15 :1 3/5+1/5:(3/2)la puterea2

Answer 1

   3,0(6) - 1 si 1/15 : 1 si 3/5 + 1/5 : (3/2)^2 = 
= (306-30)/90 - 16/15 : 8/5 + 1/5 : 9/4 = 
= 276/90 - 16/15 x 5/8 + 1/5 x 4/9 = 
= 138/45 - 2/3 + 4/45 = 
= 142/45 - 2/3 = 
= 142/45 - 30/45 = 
= 112/45  = 224/90 = 
=(248-24)/90 = 2,4(8)