Odpowiedź:
a) 5/7 + 9/7 = 14/7 = 2
b)6/11 + 9/11 = 15/11 = 1 4/11
c)4/5 + 2 4/5 = 2 8/5 = 3 3/5
d)5 17/18 + 5/18 = 5 22/18 = 6 4/18 = 6 2/9
e)6 3/10 + 7 9/10 = 13 12/10 = 14 2/10 = 12 1/5
f)6 7/8 + 4 5/8 = 10 12/8 = 11 4/8 = 11 1/2
g)3/8 + 5/8 + 7/8 = 15/8 = 1 7/8
h)7/13 + 8/13 + 12/13=27/13 = 2 1/13
i)3 3/14 + 3/14 + 9/14 = 3 15/14 = 4 1/14
j)5/7 + 4 6/7 + 1/7 = 4 12/7 = 5 5/7
k)12 3/11 + 1 5/11 + 6 9/11 = 19 17/11 = 20 6/11
l)15 5/12 + 5 5/12 + 6 11/12 = 26 21/12 = 27 9/12 = 27 3/4
Szczegółowe wyjaśnienie:
Mam nadzieję że pomogłam :)
