Odpowiedź:
a)
5 i 1/8 + 6 i 3/5 =
= 5 i 5/40 + 6 i 24/40 =
= 11 i 29/40
b)
10 i 6/7 - 2 i 1/6 =
= 10 i 36/42 - 2 i 7/42=
= 8 i 29/42
c)
2 i 3/4 * 2 i 2/5=
= 11/4 * 12/5=
= 11/1 * 3/5=
= 33/5=
= 6 i 3/5
d)
3 i 2/3 : 4 i 1/2=
= 11/3 : 9/2=
= 11/3 * 2/9=
= 22/27
Szczegółowe wyjaśnienie: