Odpowiedź:
zad 6
4 * 5 1/3=4* 16/3= 64/3=21 1/3
9* 3 1/5=9*16/5=144/5=28 4/5
2 3/7* 4=4* 17/7=68/7= 9 5/7
3 2/9* 5=5*29/9=145/9=16 1/9
4 1/4*7=7*17/4=119/4=29 3/4
6* 2 5/12=6* 29/12= 1*29/2=29/2=14 1/2
zad 7
tydzień ma 7 dni, czyli Gniadek zjada: 7*4⁴/₅ kg
Obliczenia:
7 razy 4 4/5 = 7 razy (4 + 4/5) = 7 razy 4 + 7 razy 4/5 = 28 + 28/5 =
= 28 + 5 3/5 = 33 3/5
Lub:
7 razy 4 4/5 = 7 24/5 = 168/5 = 33 3/5
Odp.: W ciągu tygodnia Gniadek zjada 33³/₅ kg owsa.
zad 8
A 7/8*16/1=7/1*2/1=14/1=14
B 3/5*15/1=3/1*3/1=9/1=9
C 36/1*2/3=12/1*2/1=24/1=24
D 16/1*1/2=8/1*1/1=8/1=8
E 3/10*8/1=3/5*4/1=12/5=2 i 2/5
F 10/1*11/12=5/1*11/6=55/6=9 i 1/6
G 4/1*23/10=2/1*23/5=46/5=9 i 1/6
H 2/1*17/6=1/1*17/3=17/3=5 i 2/3
I 8/1*7/4=2/1*7/1=14/1=14
J 100/1*127/40=10/1*127/4=5/1*127/2=635/2=317 i 1/2
K 49/15*30/1=49/2*2/1=98/2=49
L 27/25*125/1=27/1*5/1=135/1=135
Prosze i pozdrawiam
