Every mixed number is (a whole number) plus (a fraction). Since part of it is a whole number,
the mixed number must be greater than ' 1 '.
1/8 plus 2/3 is only 0.79166... and that's less than ' 1 '. So it doesn't have what it takes
to be a mixed number, no matter what you do to it or how you write it.
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Multiply the whole number times the fraction's denominator, and add the result to the existing numerator. Examples : 2 3/7 = [ (2x7) + 3] /7 = 17/7 3 and 7/10 = (10 * 3 + 7)/10 = 37/10 (Multiply fraction's denominator times whole number, add that product to fraction's numerator, and place over original fraction's denominator. )
arctan(x)
When dividing fractions and mixed numbers, the most important step is to convert the mixed number into a single fraction. E.g. 1, 1/3 should be written as 4/3.
1 7/15
You must add 1