9391+7028=16419= 82095:5=16419;70236:9=7804< 70236-9=70227;8019*7=56133>8019+7=8026
Х/(160/8)=105
х/20=105
х=105*20
х=2100
40/48=x/6 x=40*6/48
Ответ 5
3*2/7 : 2*1/7 - 1*2/15 = 6/7 : 2/7 - 2/15 =
6 * 7 2
-------- - ------ = 3 - 2/15 =
7 * 2 15
3 2 3*15 2
-- - ----- = -------- - ------- =
1 15 1*15 15
45 - 2
----------- = 43/15 = 2*13/15
15