find the average of
3 2/9 and 5 1/8 simplify and type a mixed number
9 answers
Add the two together and divide by 2.
Do I have to find the lcd first
Yes, always. All fractions have to have the same denominator to add.
8 25/72
Not correct.
Post your work so I can see what you are doing wrong, because you are not even close. :)
Post your work so I can see what you are doing wrong, because you are not even close. :)
3 16/72+5 9/72= 8/25/72
What grade are you in?
Unless there is a new way taught for adding fractions, you can't do it like that.
You have to convert each mixed number to a fraction
3 2/9 = 29/9
5 1/8 = 41/8
Then you add
29/9 + 41/8
Find the LCD
232/72 + 369/72 = 601/72
601/72 divided by 2, multiply by 1/2
601/72 * 1/2 = 601/144 = 4 25/144
Unless there is a new way taught for adding fractions, you can't do it like that.
You have to convert each mixed number to a fraction
3 2/9 = 29/9
5 1/8 = 41/8
Then you add
29/9 + 41/8
Find the LCD
232/72 + 369/72 = 601/72
601/72 divided by 2, multiply by 1/2
601/72 * 1/2 = 601/144 = 4 25/144
Ok, sorry, your answer 8 25/72,
was the SUM, not the final answer, which is the average.
8 25/72 is correct for the sum.
You have to divide the sum by 2, for the average.
So however you were adding is correct.
was the SUM, not the final answer, which is the average.
8 25/72 is correct for the sum.
You have to divide the sum by 2, for the average.
So however you were adding is correct.
And, ignore how I said that I do it. Do it your way, however you were taught. Your way IS correct.
I just prefer to do it the way I was taught. I don't want to confuse you. :)
I just prefer to do it the way I was taught. I don't want to confuse you. :)