0
First of all you need to line them up.
8/20 - 2/5
Next you need to find a common denominator.
20 is a common denominator between the 2.
Then you change both denominators to the common one.
8/20=8/20, 2/5 x 4/4= 8/20
{Since 5x4=20, you have to do that on both sides to get the common denominator.}
Then you subtract
8/20 - 8/20 = 0.
So the answer is 0
What else can I help you with?
What is 2 over 5 minus 3 over 4 equal?
Converting to twentieths, we get 8 over 20 minus 15 over 20, resulting in minus 7 over 20.
What is 9 over 10 minus 2 over 8?
18/20 - 5/20 = 13/20
What is 13 over 20 minus 3 over 5?
13/20 minus 3/5 is 1/20
What does 14 over 20 minus 3 over 5 equal?
14/20 - 3/5 = 14/20 - 12/20 = 2/20 = 1/10
What is 2 over 5 plus 3 over 4 minus 1 over 2?
2/5 + 3/4 - 1/2 equals 8/20 + 15/20 - 10/20 which adds up to 8/20 This equals 4/5
What is 9 over 10 plus 2 over 5 minus 1over 4?
18/20 + 8/20 - 5/20 = 21/20 or 1 and 1/20
What is 14 over 20 minus 3 over 5 equal?
14/20 minus 3/5 is 1/10
What is 31over 20 minus 5 over 9?
31/20 minus 5/9 is 179/180
What is 2 minus 2 over 5 plus 1 over 2 minus 4 equal?
2 minus 2/5 plus 1/2 minus 4 = -1.9
How do you work out 1 over 4 minus 1 over 10?
1/4 - 1/10 = 5/20 - 2/20 = 3/20
What is 2 minus 5 over 2?
2 minus 5/2 equals -1/2
What is 3 over 4 minus 1 over 5?
3/4 minus 1/5 is 11/20
