1. Oblicz:
a) 5 2
_ + _
7 7
b) 3 8
_ + _
11 11
c) 14 4
_ + _
15 15
d) 23 5
_ + _
28 14
e) 2 * 5
_
18
f) 7
_ * 3
21
g ) 8
_ : 2
11
h ) 3 : 27
_
29
prosze was o rozwiązanie ;*
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a) 5/7 + 2/7 = 7/7 = 1
b) 3/11 + 8/11 = 11/11 = 1
c) 14/15 + 4/15 = 18/15 = 1 i 3/15 = 1 i 1/5
d) 23/28 + 5/14 = 23/28 + 10/28 = 33/28 = 1 i 5/28
e) 2/18 * 5 = 10/18 = 5/9
f) 7/21 * 3 = 7/7 = 1
g) 8/11 : 2 = 8/11 * 1/2 = 4/11
h) 3/29 : 27 = 3/29 * 1/27 = 1/29 * 1/9 = 1/171
===================================================
/ --> kreska ułamkowa, * --> mnozenie
-------------------------------------------------
Jak masz pytania to pisz na pw..
/- kreska ułamkowa
a)1
b)1
c)1 1/5
d)1 5/28
e) 5 /9
f) 1
g) 8/22
h) 1/261
Pozdrawiam.:)