iamnarutohaha 10/11/2023 3:18:17 PM
" có ai biết làm không nhỉ ? " a, $$(\frac{1}{2})$$ $$^{2}$$ -$$\frac{3}{8}$$ :$$(\frac{-9}{2})$$ = b, $$(\frac{-4}{12})$$ - [( $$\frac{-13}{39}$$ ) - 0,25 )] + 0,75 = c, $$(\frac{-4}{5})$$ + 18 . $$(\frac{-1}{3})$$ $$^{2}$$ = d, $$(\frac{-3}{26})$$ . $$(\frac{-15}{19})$$ - $$\frac{2}{19}$$ . $$(\frac{-3}{26})$$ =