2 ( 1/2M ) - 1 ( 1/6 ) = 2,5M - 1 ( 1/6 )
M = 2
2,5 * 2 - 1 ( 1/6 ) = 5 - 1 ( 1/6 ) = 4 ( 6/6 ) - 1 ( 1/6 ) = 3 ( 5/6 )
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2 ( 1/6 ) P + 1 ( 1/3 )
P = 1 ( 2/5 ) = 7/5
13/6 * 7/5 + 1 (1/3 ) = 91/30 + 4/3 = 91/30 + 40/30 = 131/30 = 4 ( 11/30 )