Question

0.5(8f-6)=0.01(10f-9)​

Answer 1

0.5 ( 8f -6 ) = 0.01 ( 10f-9)

0.5(8f) - 0.5(6) = 0.01(10f ) - 0.01(9)

4f - 3 = 0.1f - 0.09

4f - 0.1f = 3 - 0.09

3.9f = 2.91

$f = \frac{2.91}{3.9} = \frac{291}{390}$