Question

Calculati 0,75-0,75×(19/10-1,5) si 2/5×(0,5+0,5×1/3)

Answer 1

0,75 - 0,75 × (19/10-1,5)=
3/4 - 3/4 x (19/10-3/2) =
3/4 -3/4 x 2/5 =
3/4 - 3/2 x 1/5 =
3/4 - 3/10 =
9/20 = 0,45



2/5 ×(1/2+1/2×1/3) =
2/5 x (1/2 +1/6) =
2/5 x (3/6+1/6)=
2/5 x 2/3=
4/15 = 0,266667