You change the mixed number into an inproper fraction.
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)
To subtract a mixed number by a mixed number you first need to turn the fractions into improper fractions then you just subtract them as you would with the normal fractions
Change the mixed numbers into improper fractions. Multiply and then change back to a mixed number in reduced form as necessary.
Factors refer to whole numbers, not fractions.
an improper fraction
Mixed fractions can be converted into improper fractions then changed back to a mixed number.
Change them into improper fractions. Invert the second fraction and multiply them together. Reduce if necessary.