Question

( frac{1}{4} - frac{2}{3} )*( frac{4}{5} - frac{2}{15} )*(- frac{3}{5} )

Answer 1

$(frac{1}{4} - frac{2}{3} )*( frac{4}{5} - frac{2}{15} )*(- frac{3}{5})= \ = (frac{3-8}{12})*( frac{12-2}{15} )*(- frac{3}{5})= (frac{-5}{12})*( frac{10}{15} )*(- frac{3}{5})= \ = (frac{-5}{12})*( frac{2}{3} )*(- frac{3}{5})= frac{5*2*3}{12*3*5} = frac{1}{6}$