Algebra
posted by Ashley .
Please explaine how i would do this problem....
8 1/9  1 6/7 = ?????

before you substract, you need to find the common denominator...so the common denominator for 9 and 7 is 63. so you change both into the denominator to 63. there you have 8 7/631 54/63 which is 394/64 in improper fraction then you simplify it.