Question

(6 9/25-5 8/15)÷(4/5)

Answer 1

$(6\frac{9}{25} -5\frac{8}{15} ) : (\frac{4}{5}=1\frac{1}{30} )\\\\1.(6\frac{9}{25} -5\frac{8}{15} )=\frac{9+6*25}{25} -\frac{8+5*15}{15} =\frac{159}{25} -\frac{83}{15} =\frac{477}{75} -\frac{415}{75} =\frac{62}{75} \\2.\frac{62}{75} : \frac{4}{5} =\frac{62}{75} *\frac{5}{4} =\frac{31}{30} =1\frac{1}{30}$