PLEASE HELP!!! Simplify the expression.

Answer:
2d
——
cd
Step-by-step explanation:
c - d
Simplify —————
cd
1
Simplify —
d
Equation at the end of step 2 :
1 1 (c - d)
(— + —) - ———————
c d cd
Step 3 :
1
Simplify —
c
Equation at the end of step 3 :
1 1 (c - d)
(— + —) - ———————
c d cd