Число aabb є повним квадратом. При яких числах a і b це можливо?

1)  8/27*3/x = 52/8:3/4
52/8:3/4 = 52/8*4/3 = 26/3 = 8 2/3

8/27*3/x  = 26/3

3/x = 26/3:8/27 = 26/3*27/8 = 117/4
3/x = 117/4
x = 117/4:3  = 117/4*1/3 = 39/4 = 9 3/4

2) 64/107*x = 7/15:7/25
       64/107*x  = 5/3    x = 5/3 : 64/107 = 5/3*107/64 =  535/192 = 2 151/192

3)  6/32 * 83/15 = 13/x:26/18
     3/16*83/15 = 83/80 = 1 3/80
     83/80 *26/18 = 13/x      1079/720 = 13/x
x = 1079/720:13 = 1079/720*1/13 = 83/720

4) 3/7 : 8/7 = 25/14 : 31/x
   3/8 = 25/14 : 31/x        31/x = 25/14 : 3/8
   31/x = 100/21
x = 31: 100/21 = 651/100 = 6,51

5) 64/16 - 3/64 = 3/15: 8/(3-x)

     64/16 - 3/64 = 256/64 - 3/64 = 253/64 = 3  61/64

     253/64 =  3/15: 8/(3-x)

     3/15 : 253/64 = 8/(3-x)
     64/1265 = 8:(3-x)
3-x = 8 : 64/1265          3 - x = 1265/8 = 158 1/8

- x =  158 1/8 - 3       - x = 155 1/8    x = - 155 1/8

1) 8<13,            8<13,             8<13,           8<13,
    8+5<13+5,     8+4<13+4,     8-2<13-2,     8-6<13-6,
    13<18;           12<17;           6<11;          2<7;
2) 8<13,             8<13,             8<13,                  8<13,
    8-3<13-3,        8-7<13-7,       8-(-1)<13-(-1),      8-(-4)<13-(-4),
    5<10;              1<6;              8+1<13+1,          8+4<13+4,
                                               9<14;                  12<17.    ЬАКИМЖЕ СПСОБОМ ЭТИ