12. Oblicz podaną sumę. Wynik przedstaw w najprostszej postaci.
a) 2
+ 3 =
b) 1 +54 =
13
c) 7 / +5 =
d) 7+2=
=+
Chodzi o to 12!! Pliss dam najj
a) 2
+ 3 =
b) 1 +54 =
13
c) 7 / +5 =
d) 7+2=
=+
Chodzi o to 12!! Pliss dam najj
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zadanie w załączniku
pozdrawiam M
Odpowiedź:
2 i 1/5 + 3 i 9/10 = 2 i 4/20 + 3 i 18/20 = 5 i 22/20 = 6 i 2/20 = 6 i 1/10
1 i 8/9 + 5 i 4/7 = 1 i 56/63 + 5 i 36/63 = 6 i 92/63 = 7 i 29/63
7 i 1/15 + 5 i 13/30 = 7 i 2/30 + 5 i 13/30 = 12 i 15/30 = 12 i 1/2
7 i 5/6 + 2 i 2/9 = 7 i 45/54 + 2 i 12/54 = 9 i 57/54 = 10 i 3/54 = 10 i 1/18
15 i 5/8 + 1 i 6/7 = 15 i 35/56 + 1 i 48/56 = 16 i 83/56 = 16 i 27/56