83.8 = 83 8/10 = 83 4/5
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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.
A mixed numberThis is called a mixed number or mixed fraction.
Divide the numerator (top number = 50) by the denominator (bottom number = 7) to get a result and remainder; the result is the whole number (of the mixed number) and put the remainder as the numerator over the denominator (to get the fraction of the mixed number):50 ÷ 7 = 7 r 1⇒ 50/7 = 71/7
If the number is put together and looks like this: 1 1/2 then it is called a mixed number. If they are put together like this: 3/2 then it is an improper fraction :)