Răspuns:
Explicație pas cu pas:
5) 11/13 < x/(100*169)
11*100*169 < 13*x |:13
1100*13 < x , x > 14300
x/(100*169) < 12/13
13*x < 100*169 *12 |:13
x < 100*13*12, x < 15600
11/13 < 14300/(100*169) < 14301/(100*169) ...<15600/(100*169)
15600 - 14300 +1 = 1300 +1 = 1301 total fractii