Factor out the coefficient of the variable: 3/8d + 3/4

 For this case we have the following expression:
 
 We must factor the term that accompanies the variable.
 We have then:
 
 Rewriting the expression we have:
 
 We're going to check the result. To do this, we multiply the term 3/8 for each term within the parenthesis:
 
 Rewriting:
 
 The factorization is correct.
 
 (3/8) (d + 2)