You change it into an improper fraction, then simplify it, then if you want to, change it back to a mixed number.
You change them into improper or topheavy fractions.
You don't.
Change the mixed numbers into improper fractions and carry out the calculations accordingly
First you would want to change the mixed number to an improper fraction. Then you can subtract
Its impossible you can change improper fractions into mixed number, but not 3490000...
You do the numerator divided by the denominator, then simplify the fractions if you can. (this is how you change a improper fraction to a mixed number, you cannot change a proper fraction to a mixed number)
change it to an improper fraction and then do it
If its not an improper fraction then you cant....
change it to an improper fraction and then divide it
Change them to improper fractions and double them.
improper fraction