Kirjoita ruutuun oikea vastaus - murtoluvut kauttaviivalla (Shift +7) /

Muista supistaa!

a) [[$\dfrac {1}{2} + \dfrac {1}{2} = $]]

b) [[$\dfrac {1}{3} + \dfrac {1}{3} = $]]

c) [[$\dfrac {1}{4} + \dfrac {1}{4} = $]]

d) [[$\dfrac {1}{2} · \dfrac {1}{2} = $]]

e) [[$\dfrac {1}{4} · \dfrac {3}{4} = $]]

f) [[$\dfrac {2}{5} · \dfrac {3}{5} = $]]

g) [[$\dfrac {1}{2} · \dfrac {2}{5} = $]]