let say for example you have 7 fifths. There are 5 fiths in a whole. You still have two fifths remaining and therfore the fraction becomes 1 and 2 fifths (1 2/5).
Add the numerator to the product of the whole number and denominator, and write that over the denominator. For example: 2 3/5 = (2x5 + 3)/5 = 13/5 4 5/7 = (4x7 + 5)/7 = 33/7
ex.1 2/3 take the base number and multiple that by the denominator and add by the numerator andAwhatever you get for that is your new numerator but you denominator stays the same as the last one so...