Odpowiedź:
2/7 : 3 = 2/7 * 1/3= 2/21
4/7 : 2 = 4/7 * 1/2 = 2/7 * 1/1 = 2/7
5/9 : 3 = 5/9 * 1/3= 5/27
1 1/2 : 3 = 3/2 * 1/3 = 1/2 * 1/1= 1/2
2 1/4 : 6 =9/4 * 1/6= 3/4 * 1/2 = 3/8
4 1/5 : 7 = 21/5 * 1/7= 3/5 * 1/1= 3/5
2 4/7 : 9 = 18/7 * 1/9 = 2/7 * 1/1 = 2/7
20 2/3 : 31 = 62/3 * 1/31= 2/3 * 1/1= 2/3
10 1/5 : 9 = 51/5 * 1/9 = 17/5 * 1/3= 17/15= 1 2/15
10 2/11 : 21 = 112/11 * 1/21 = 16/11 * 1/3= 16/33
1 1/99 : 15 = 100/99 * 1/15= 20/99 * 1/3= 20/297
Mam nadzieję, że pomogłam :)
