To jest mnożenie ---- > * to jest kreska ułamkowa /
zad.1
6 1/8 * 1 3/7 * 7 1/2=
45* 12 1/4 * 5 5/7=
zad.2
a) 5/7 : 10=
2 2/3 : 8=
16 : 8/11=
46 : 18 2/5=
b) 7/9 : 5/8=
25/34 : 15/17=
15/16 : 9/32=
5/7 : 15/18=
c) 3 5/9 : 1 7/16=
16 2/3 : 1 9/11=
2 1/5 : 15 2/5=
2 14/25 : 4 4/15=
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zad.1
6 1/8 * 1 3/7 * 7 1/2= 49/8*10/7*15/2=
49*10/8*7 *15/2=
70/8*15/2= 35/4*15/2=35*15/8 =525/8= 65 5/8
45* 12 1/4 * 5 5/7=45*49/4*40/7= 45*49*10/7=45*7*10=45*70=3150
zad.2
a) 5/7 : 10= 5/7*1/10=1/14
2 2/3 : 8=8/3:8= 8/3*1/8=1/3
16 : 8/11= 16*11/8=22
46 : 18 2/5= 46:92/5= 46*5/92=5/2=2 1/2
b) 7/9 : 5/8= 7/9*8/5=56/45= 1 11/45
25/34 : 15/17= 25/34*17/15=5/6
15/16 : 9/32= 15/16*32/9=15*2/9= 10/3= 3 1/3
5/7 : 15/18= 5/7*18/15=5/7*6/5=6/7
c) 3 5/9 : 1 7/16= 32/9:23/16= 32/9*16/23= 2/9*23= 2/207
16 2/3 : 1 9/11= 50/3:20/11= 50/3*11/20=55/6= 9 1/6
2 1/5 : 15 2/5=11/5: 77/5= 11/5*5/77=1/7
2 14/25 : 4 4/15= 64/25:64/15= 64/20*15/64= 3/4