=1/2
=1/4
=2/9
=2/5
=7/9
=2/3
=3/4
--------------------------------------
16/18<17/18 8/9<17/18
18/21>17/21 6/7>17/21
35/60<44/60 7/12<11/15
35/63<36/63 5/9<4/7
42/90<65/90 7/15<13/18
49/252<66/252 7/36<11/42
----------------------------------------------------
1/4 3/8 7/9 5/6
x<5 1/6 х∈(-∞;5 1/6 )
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=1/2
=1/4
=2/9
=2/5
=7/9
=2/3
=3/4
--------------------------------------
16/18<17/18 8/9<17/18
18/21>17/21 6/7>17/21
35/60<44/60 7/12<11/15
35/63<36/63 5/9<4/7
42/90<65/90 7/15<13/18
49/252<66/252 7/36<11/42
----------------------------------------------------
1/4 3/8 7/9 5/6
--------------------------------------
x<5 1/6 х∈(-∞;5 1/6 )