I would take it again depending on when you leave. 4/5 is the average compared to others who have taken it in the last 12 months. 8/9 is the best you can score. I suck at adding fractions so if you know of a helpful way to solve them that would be great.
If the fractions have the same denominator, you can just add the numerators and call it good. For example, 1/5 + 3/5 = 4/5.
If the denominators are different, you need to find the lowest common denominator (LCD) that fits the numbers, and multiply each fraction (numerator and denominator) by the number that will make the denominators the same. For example, lets use 1/5 + 1/6. Since the denominators are not the same, we need to find the LCD. The lowest number that 5 and 6 fit into evenly is 30, so that will be our new denominator. To make 5 (the first denominator) turn into 30, we need to multiple the fraction (numerator and denominator) by 6, so the first fraction turns into 6/30. The second fractions needs to be multiplied by 5, so it turns into 5/30. Now that we have the same denominator on both fractions, we can just add the numerators. 6/30 + 5/30 = 11/30.