13/50-0,36

To solve this expression, you need to follow the order of operations, also known as PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction) or BODMAS (Brackets, Orders, Division and Multiplication, Addition and Subtraction).

Let's break down the expression step by step:

1. Firstly, we should subtract 0.36 from 13/50:

   13/50 - 0.36 = 13/50 - 36/100

2. To subtract these fractions, we need to find a common denominator. In this case, the common denominator is 100:

   13/50 - 36/100 = (13 * 2)/(50 * 2) - 36/100 = 26/100 - 36/100

3. Now that the fractions have the same denominator, we can subtract the numerators:

   26/100 - 36/100 = (26 - 36)/100 = -10/100 = -1/10

So, 13/50 - 0.36 is equal to -1/10 or -0.1.