[tex]\sf 2. \: \frac{7}{8} - \frac{4}{16}[/tex]
[tex]\sf = \frac{7}{8} + \frac{- 4}{16}
[tex]\sf = \frac{7}{8} + \frac{- 1}{4}[/tex]
[tex]\sf = \frac{7}{8} + \frac{- 2}{8} [/tex]
[tex]\sf = \frac{7 + - 2}{8} [/tex]
[tex]\sf = \frac{5}{8 }[/tex]
[tex]\sf3.[/tex]
[tex] \sf= \frac {1}{2} [/tex]
[tex]\sf4.[/tex]
[tex]\sf \frac{8}{15}[/tex]
[tex]\sf5.[/tex]
[tex]\sf= \frac{11}{8}[/tex]
