6/25 - 4/5=

6 / 25 - 4 / 5 =

6 / 25 - 5 ∙ 4 / 5 ∙ 5 =

6 / 25 - 20 / 25 =

- 14 / 25

6/25-4/5 = 6/25-20/25 = -14/25.

To subtract two fractions, you need to have a common denominator. In this case, you need to determine the least common denominator (LCD) of 25 and 5, which is 25. Once you have a common denominator, you can subtract the fractions by subtracting the numerators while keeping the denominator the same.

Let's calculate step by step:

Step 1: Find the equivalent fraction for each fraction using the LCD.
- For 6/25, since the denominator is already 25, the fraction remains the same.
- For 4/5, to make the denominator 25, multiply both the numerator and denominator by 5. This gives us (4 * 5) / (5 * 5) = 20/25.

Step 2: Now that both fractions have the same denominator, subtract the numerators while keeping the denominator the same.
6/25 - 20/25 = (6 - 20) / 25 = -14/25

Therefore, 6/25 - 4/5 equals -14/25.