find the average 6 1/5 and 6 1/4
Use 20 as a common denominator. I suggest you then change both fractions to improper fractions. Add the two numbers and divide by 2 to find the average.
I'll be glad to check your answer.
1 209/40
6 40/20
6 5/20
=12 9/20
12 9/20 /2=249/20/ 2/1
=249/20 *1/2
=249/40
and the answer was 1 209/40 it had to be a mixed number
You're right about 249/40. However, that simplifies to 6 9/40
That makes sense because we know that the average must be between 6 1/5 and 6 1/4.
To find the average of two numbers, you need to add them together and then divide the sum by 2.
First, let's convert the mixed numbers into improper fractions.
6 1/5 can be written as 31/5 and 6 1/4 can be written as 25/4.
Next, add the two fractions together:
31/5 + 25/4
To add fractions with different denominators, we need to find a common denominator. In this case, the common denominator is 20.
31/5 = (31/5) * (4/4) = 124/20
25/4 = (25/4) * (5/5) = 125/20
Now, we can add the fractions:
124/20 + 125/20 = 249/20
Finally, divide the sum by 2 to find the average:
(249/20) ÷ 2 = 249/40
So, the average of 6 1/5 and 6 1/4 is 249/40.