4 2/5 - 1 1/3 + 2 3/4=

4 2/5 - 1 1/3 + 2 3/4
22/5 - 4/3 +11/4
264/60 -80/60 + 165/60
349/60
5 49/60

4[tex] \frac{2}{5} [/tex]-1[tex] \frac{1}{3} [/tex]+2[tex] \frac{3}{4}[/tex]
=[tex] \frac{22}{5} [/tex]-[tex] \frac{4}{3} [/tex]+[tex] \frac{11}{4} [/tex]
=[tex] \frac{264-80+165}{60} [/tex]
=[tex] \frac{349}{60} [/tex]
=5[tex] \frac{49}{60} [/tex]