717. A(1) nuqta: 1) +1 birlik; 2) +2 birlik; 3) -2 birlik 4) -1 birlik; 5) -3 masofaga ko'chirilgan bo'lsa, hosil bo'lgan nuqtalarning koordinatalarini toping.

1) Общий знаменатель 99
99 : 11 = 9 - доп.множ. к 6/11 = (6*9)/(11*9) = 54/99
99 : 9 = 11 - доп.множ. к 4/9 = (4*11)/(9*11) = 44/99
ответ: 6/11 и 4/9 = 54/99 и 44/99.

2) Общий знаменатель 18
18 : 6 = 3 - доп.множ. к 1/6 = (1*3)/(6*3) = 3/18
ответ: 7/18 и 1/6 = 7/18 и 3/18.

3) Общий знаменатель 28
28 : 7 = 4 - доп.множ. к 5/7 = (5*4)/(7*4) = 20/28
28 : 4 = 7 - доп.множ. к 3/4 = (3*7)/(4*7) = 21/28
ответ: 5/7 и 3/4 = 20/28 и 21/28.

4) Общий знаменатель 8
8 : 4 = 2 - доп.множ. к 3/4 = (3*2)/(4*2) = 6/8
ответ: 5/8 и 3/4 = 5/8 и 6/8.

1/3+1/6=2/6+1/6=3/6=1/3
1/2+1/3=3/6+2/6=5/6
3/5-1/10=6/10-1/10=5/10=1/2
1/12+5/6=1/12+10/12=11/12 
1/3+1/4=4/12+3/12=7/12 
1/3+2/5=5/15+6/15=11/15 
1/2-1/4=2/4-1/4=1/4
1/4-1/5=5/20-4/20=1/20 
1/2+3/7=7/14+6/14=13/14 
3/4-1/8=6/8-1/8=5/8 
1/5+1/6=6/30+5/30=11/30 
4/15+2/5=4/15+6/15=10/15=2/3 
7/10-1/2=7/10-5/10=2/10=1/5
1/3-1/4=4/12-3/12=1/12 
1/3-1/6=2/6-1/6=1/6 
3/20+3/4=3/20+15/20=18/20=9/10 
7/9-2/3=7/9-6/9=1/9 
1/4+1/5=5/20+4/20=9/20 
2/5+4/15=6/15+4/15=10/15=2/3
1/3+1/4=4/12+3/12=7/12
2/3-1/5=10/15-3/15=7/15 
1/5-1/6=6/30-5/30=1/30 
1/2+1/4=2/4+1/4=3/4 
7/6-1=7/6-6/6=1/6 
1/2+2/7=7/14+4/14=11/14 
1/2-1/3=3/6-2/6=1/6 
3/4+1/8=6/8+1/8=7/8 
5/6-7/12=10/12-7/12=3/12=1/4 
2/5+3/10=2/10+3/10=5/10=1/2