Oblicz:
a) 4,8 x 1 1/3=
5,8x1 2/3=
b) 3,5: 1 2/3=
4 1/4: 2,5=
c) 2,2:1 5/6=
4,24: 4/5=
Jak coś to np. 4/5 to ułąmek zwykły !
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A] 4,8 x 1 1/3=4 8/10 x 1 1/3= 48/10 x 4/3=192/30=6 12/30=6 2/5
5,8 x 1 2/3=5 8/10 x 1 2/3=58/10 x 5/3=290/30=9 20/30=9 2/3
B] 3,5 :1 2/3=3 5/10 : 1 2/3=35/10 : 5/3=35/10 x 3/5=105/50= 2 5/50=2 1/10
4 1/4 : 2,5=4 1/4 : 2 5/10=17/4 : 25/10=17/4 x 10/25=170/100=
=1 70/100=1 7/10
C] 2,2 : 1 5/6=2 2/10 : 1 5/6=22/10 : 11/6= 22/10 x 6/11=132/110=1 22/110=
=1 1/5
4,24: 4/5=4 24/100 : 4/5=424/100 x 5/4=2120/400=5 120/400 =5 30/100=
=5 6/20