= (50 + 2/41 - 5/6 - 18 + 4/50 + 1/9) 0.05 + 4.2= (50 + 0.04878 - 0.8333 - 18 + 0.08 + 0.1111) 0.05 + 4.2= (50 + 0.04878 - 0.8333 - 18 + 0.08 + 0.1111) 0.05 + 4.2= (50.40658) 0.05 + 4.2= 2.520329 + 4.2= 6.720329
Therefore, (50 2 :41 5/6 -18,04 : 50 1/9) * 0,05 + 4,2 = 6.720329.
= (50 + 2/41 - 5/6 - 18 + 4/50 + 1/9) 0.05 + 4.2
= (50 + 0.04878 - 0.8333 - 18 + 0.08 + 0.1111) 0.05 + 4.2
= (50 + 0.04878 - 0.8333 - 18 + 0.08 + 0.1111) 0.05 + 4.2
= (50.40658) 0.05 + 4.2
= 2.520329 + 4.2
= 6.720329
Therefore, (50 2 :41 5/6 -18,04 : 50 1/9) * 0,05 + 4,2 = 6.720329.