1/2-1/4 2/4-1/4 1/4
2- ---------- 2 - ------------- 2- --------- 2-1/8
2 2 2
---------------- = ------------------- = --------------- = -------- =
1/2-1/4 2/4-1/4 1/4
2 + ---------- 2+ ---------- 2+ ------- 2+1/8
2 2 2
2/1-1/8 16/8-1/8 15/8
= ------------ = ------------ = --------- = 15/8:17/8=15/17= 0,8824
2/1+1/8 16/8+1/8 17/8
2-(1/2-1/4)/2 2-(0,5-0,25)/2 2-0,125 1,875
или =------------------- =--------------------- = -------------- = --------- = 0,8824
2+(1/2-1/4)/2 2+(0,5-0,25)/2 2+0,125 2,125