Odpowiedź:
Wynik końcowy zaznaczam drukiem pogrubionym
4.
a) 3 3/10 + 1/2 = 3 3/10 + 5/10 = 3 8/10 = 3 4/5
b) 1 1/5 + 1/2 = 1 2/10 + 5/10 = 1 7/10
c) 2 3/7 + 1/2 = 2 6/14 + 7/14 = 2 13/14
d) 1 7/9 + 2/3 = 1 7/9 + 6/9 = 1 13/9 = 2 4/9
e) 2 5/6 + 2/3 = 2 5/6 + 4/6 = 2 9/6 = 3 3/6 = 3 1/2
f) 1 3/10 + 2/3 = 1 9/30 + 20/30 = 1 29/30
5.
a) 2 2/3 + 1 1/6 = 2 4/6 + 1 1/6 = 3 5/6
b) 1 1/2 + 1 1/3 = 1 3/6 + 1 2/6 = 2 5/6
c) 3 1/5 + 2 1/2 = 3 2/10 + 2 5/10 = 5 7/10
d) 2 1/4 + 4 2/3 = 2 3/12 + 4 8/12 = 6 11/12
e) 1 1/6 + 1 1/4 = 1 2/12 + 1 3/12 = 2 5/10
Szczegółowe wyjaśnienie:
Wynik końcowy zaznaczam drukiem pogrubionym
4.
a) 3 3/10 + 1/2 = 3 3/10 + 5/10 = 3 8/10 = 3 4/5
b) 1 1/5 + 1/2 = 1 2/10 + 5/10 = 1 7/10
c) 2 3/7 + 1/2 = 2 6/14 + 7/14 = 2 13/14
d) 1 7/9 + 2/3 = 1 7/9 + 6/9 = 1 13/9 = 2 4/9
e) 2 5/6 + 2/3 = 2 5/6 + 4/6 = 2 9/6 = 3 3/6 = 3 1/2
f) 1 3/10 + 2/3 = 1 9/30 + 20/30 = 1 29/30
5.
a) 2 2/3 + 1 1/6 = 2 4/6 + 1 1/6 = 3 5/6
b) 1 1/2 + 1 1/3 = 1 3/6 + 1 2/6 = 2 5/6
c) 3 1/5 + 2 1/2 = 3 2/10 + 2 5/10 = 5 7/10
d) 2 1/4 + 4 2/3 = 2 3/12 + 4 8/12 = 6 11/12
e) 1 1/6 + 1 1/4 = 1 2/12 + 1 3/12 = 2 5/10
