Lavenna seuraavat murtoluvut.

a.

[[$^{2)}\frac{2}{3}$]] =

---

b.

[[$^{2)}\frac{1}{4}$]] =

---

c.

[[$^{2)}\frac{3}{4}$]] =

---

d.

[[$^{2)}\frac{2}{5}$]] =

---