What's one eighth of four fifths? The formula is ()

What's one eighth of four fifths? The formula is ()


(4/5)*(1/8)=1/10



Calculation: 8A + 2B + (5a-b)


The original formula is 8A + 2B + 5a-b = 13A + B



What is the reduced value of 3.5A + 2.8a-a


Solution
The original formula = (3.5 + 2.8-1) a = 5.3a