To convert a mixed number to an improper fraction, multiply the denominator by the whole number, add that total to the numerator and put the whole thing over the original denominator.
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You cannot: whole numbers and improper fractions are disjoint sets.
Multiply the denominator by the whole number, add that total to the numerator and put the whole thing over the original denominator.
you subtract mixed numbers by changing them to improper fractions. to borrow from a whole number you take away one like 5 changes to 4 and then you change look to the other mixed number your subtracting by and write its denominator as 4s denominator.
Covert each of the original mixed numbers to improper fractions;divide the improper fractions;simplify the resulting fraction, converting any improper fraction to a mixed number.45/8 = 37/823/4 = 11/4⇒ 45/8 ÷ 23/4 = 37/8 ÷ 11/4= 37/8 x 4/11= 37/22= 115/22
Improper fraction: 43/8 Mixed numbers: 6 1/8