Question

вычислите 1-(1/3+2/9)

Answer 1

1-(1/3+2/9)= $1-( frac{1*3}{3*3} + frac{2}{9}) = 1-( frac{3}{9} + frac{2}{9} )= 1- frac{5}{9} = frac{9}{9} - frac{5}{9} = frac{4}{9}$