7-3/5+2 7/9=6 45/45-27/45+2 35/45=8 53/45=9 8/45
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5 2/7-1/3+6=5 6/21-7/21+6=4 27/21-7/21+6=4 20/21+6=10 20/21
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9+1 3/4-2/5=9+1 15/20-8/20=10 7/20
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3 5/12-4/5+31/30=3 25/60-48/60+31/60=3 25/60+31/60-48/60=3 8/60=3 2/15
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6 5/9+3-7/12=6 20/36+3-21/36=9 20/36-21/36=8 56/36-21/36=8 35/36
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8 7/15-5 3/4+6=8 20/60-5 45/60+6=14 20/60-5 45/60=13 80/60-5 45/60=
=8 35/60=8 7/12