Question

Oblicz
2 4/7 : 9
5 5/11 : 120
25 : 3 3/4
1 : 2 4/9
16/21 : 8/35
3 1/2 : 4 2/3
8 1/15 : 3 2/3
17 4/13 : 1 23/52

Answer 1

2 i 4/7 : 9=

= 18/7 : 9 =

= 18/7 * 1/9=  (skracam ułamki)

= 2/7 * 1/1=

= 2/7




5 i 5/11 : 120=

= 60/11 : 120=

= 60/11 * 1/120 =  (skracam  ulamki)

= 1/11 * 1/2=

= 1/22




25 : 3 i 3/4=

= 25 : 15/4=

= 25 * 4/15 = ( skracam ułamki)

= 5 * 4/3=

= 20/3=

= 6 i 2/3




1 : 2 i 4/9=

= 1 : 22/9=

= 1 * 9/22=

= 9/22




16/21 : 8/35=

= 16/21 * 35/8 = (skracam ułamki)

= 2/3 * 5/1=

= 10/3=

= 3 i 1/3





3  i 1/2 : 4 i 2/3=

= 7/2 : 14/3 =

= 7/2 * 3/14=  ( skracam ułamki)

= 1/2 * 3/2=

= 3/4




8  i 1/15 : 3 i 2/3=

= 121/15 : 11/3=

= 121/15 * 3/11=  (skracam ułamki)

= 11/5 * 1/1=

= 11/5=

= 2 i 1/2




17 i 4/13 : 1 i 23/52=

= 225/13 : 75/52=

= 225/13 * 52/75=

= 3/1 * 4/1 =

= 12/1 =

= 12