Here we will convert the number 39.78 to a fraction.
39.78 is the same as 39.78/1, because 39.78 divided by 1 is 39.78.
Therefore, we can multiply both the numerator and denominator in 39.78/1 by 100 to get rid of the decimal point and make it into a fraction as follows:
39.78/1 x 100/100 = 3978/100
Then, we simplify the fraction if necessary and we have our answer:
39.78 = 39 39/50
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