Simple calculation of 1:11 6 + 2:9 7 + 3:7 3 + 4:11 5 + 5:7 4 + 6:9 1

Simple calculation of 1:11 6 + 2:9 7 + 3:7 3 + 4:11 5 + 5:7 4 + 6:9 1

1 and 11:6 + 2 and 9:7 + 3 and 7:3 + 4 and 11:5 + 5 and 7:4 + 6 and 9:1
=(1 6 / 11 + 4 5 / 11) + (2 7 / 9 + 6 1 / 9) + (3 3 / 7 + 5 4 / 7)
=6 + 8 and 8 + 9 out of 9
=23 and 8 / 9
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