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12/15
=4/5
=0.8
3.9/2.6
=1.5
650/4000
=0.1625
21/27
=7/9
2.5/3.5
=25/35
=5/7
3/8/7/12
=3/8*12/7
=9/14
=4/5
=0.8
3.9/2.6
=1.5
650/4000
=0.1625
21/27
=7/9
2.5/3.5
=25/35
=5/7
3/8/7/12
=3/8*12/7
=9/14
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