150.7
To solve this, we first turn both the fractions into decimals :
[tex]\frac{1}{5} = 0.2\\[/tex] (add this to 426 to get 426.2)
[tex]\frac{1}{2} = 0.5[/tex] (add this to 275 to get 275.5)
Then, just solve the equation :
426.2 - 275.5 = 150.7
