2d + 1

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5

this is 2d + 1 fifth. Sorry the formatting for this problem is incorrect.

2d + 1/5

= (10d + 1)/5 , nothing gained here.

To simplify the expression (2d + 1) / 5, you can use the following steps:

Step 1: Distribute the division symbol across the numerator:
(2d / 5) + (1 / 5)

Step 2: Simplify each term:
2d / 5 is the same as (2/5) * d
1 / 5 cannot be further simplified

So the simplified expression is:
(2/5) * d + (1 / 5)