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.
find the average 6 1/5 and 6 1/4
4 answers
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
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.
That makes sense because we know that the average must be between 6 1/5 and 6 1/4.
1 answer