It is the binary operation of multiplication which has two inputs, at least one of which comprises a mixed fraction: that is, a fraction which consists of an integer part and a part which is a proper fraction.
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Mixed fraction multiplication refers to the process of multiplying two mixed fractions. To do this, first convert the mixed fractions into improper fractions. Then, multiply the numerators together and the denominators together. Finally, reduce the resulting fraction, if possible, by finding the greatest common divisor of the numerator and denominator.
98 is an integer and there is no sensible way of representing it as a mixed fraction.
A mixed number
It is a fraction - which may be mixed or proper.
0.714285 does not convert to a mixed fraction, just a fraction. It is: 142857/200000
To find 87.5% of a fraction or mixed number, you first convert the fraction or mixed number into a whole number with or without a decimal (ex. 3/4=.75; 1 3/8=1.375). Next, you take 87.5% and convert it into a decimal (for multiplication. To do this, you simply move the decimal point (.) two paces to the left (87.5=.875) and the opposite when converting a decimal to a percent. Next, you multiply .875 by whatever the converted fraction or mixed number came out as. Now you have your answer. Hope this helps.