Rozwiąż :
a) 2 3/4 + 1 1/2 =
b)3- 1 1/3
c) 12 1/3 - 2 1/2
d) 6 3/4 + 1 1/5
e) 1 1/2 * 1 1 /3 =
f) 2,3 + 44,81=
g) 37- 25,41=
h)2 1/6 : 1 1/2
i) 2,5 - 6,7=
j) 625: 0,5 =
Pomocyy !! to 1/2 to jest jedna druga ;P
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2 3/4 + 1 1/2= 2 3/4+ 1 2/4=3 5/4= 4 1/4
3 - 1 1/3= 1 2/3
12 1/3 - 2 1/2 = 37/3 - 5/2= 74/6 - 15/6= 59/6= 9 5/6
6 3/4 +1 1/5=6 15/20 + 1 4/20 = 7 19/20
1 1/2 * 1 1/3= 3/2 * 4/3=12/6 = 2
2,3 + 44,81= 47,11
37 - 25,41 = 11,59
2 1/6 : 1 1/2=13/6 : 3/2 =13/6 *2/3=26/18=1 8/18
625: 0,5=1250
w przykładzie i) chyba powinno być odwrotnie 6,7-2,5= 4.2
a) 2 3/4 + 1 1/2 = 2,75 + 1,5 = 4,25
b) 3 - 1 1/3 = 2 3/3 - 1 1/3 = 1 2/3
c) 12 1/3 - 2 1/2 = 12 2/3 - 2 3/6 = 11 8/6 - 2 3/6 = 9 5/6
d) 6 3/4 + 1 1/5 = 6,75 + 1,2 = 7,95
e) 1 1/3 * 1 1/3 = 3/2 * 4/5 = 2
f) 2,3 + 44,81 = 47,11
g) 37 - 25,41 = 11,59
h) 2 1/6 : 1 1/2 = 13/6 : 3/2 = 13/6 * 2/3 = 13/9 = 1 4/9
i) 2,5 - 6,7 = -4,2
j) 625 : 0,5 = 1250