Dividing Fractions with Unlike Denominators A fraction bar. The top bar is labeled 1. 4 bars underneath the bar are labeled one-fourth. 5 bars underneath the 4 bars are labeled one-fifth. 20 bars underneath the 5 bars are labeled StartFraction 1 Over 20 EndFraction. Divide: Three-fourths divided by two-fifths 2 and one-fifth 3 and three-fourths 2 and three-fifths 1 and StartFraction 7 Over 8 EndFraction