71/8 = 57/8
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15/8
improper fraction of seven and a half = 15/27 1/2:= [(2 * 7)+1]/2= [14+1]/2= 15/2 in improper fraction
79/98 7/9:= [(9 *8)+7]/9= [72+7]/9= 79/9 in improper fraction
23/8
1 and 7/8. To put that as an improper fraction you have to multiply the denominator by the whole number (so 8 times 1 which equals 8) and then add what is in the numerator (8+7 which equals 15). You then take that number and put it over the original denominator. So 1 and 7/8 would be equal to 15/8.