For this case, we convert the mixed numbers into fractions:
[tex]5 \frac {50} {100} = \frac {100 * 5 + 50} {100} = \frac {550} {100} = \frac {55} {10} = 5.5[/tex]
[tex]2 \frac {72} {100} = \frac {100 * 2 + 72} {100} = \frac {272} {100} = 2.72[/tex]
Now, rewriting the expression in three equivalent forms we have:
[tex]\frac {550} {100} - \frac {272} {100} = \frac {278} {100}[/tex]
[tex]5.5-2.72 = 2.78\\2 \frac {78} {100}[/tex]
Answer:
[tex]2 \frac {78} {100}[/tex]
