*A =5 , B =4.8 and C = 0.2. The relative error on A, B and C is 1%. Calculate the absolute and relative error on D when D is calculated as*

D =A/C + B/C

Explain why the relative error in D is large.

I'm new to this topic and got a little confused, we don't get any solutions so here is my attempt.

ABSOLUTE D = l0.5/0.02l + l-0.048/0.02l = 27.4

RELATIVE D = 0.02/0.5 + 0.03083/0.5 = 0.0816

I calculated the relative error of A, B and C using the formula lerror/valuel

I know these will most likely be wrong but could someone give me guidance on how I might correct these?

Thanks