Trang chủ » Hỏi đáp » Môn Toán 8/7 + -6/7 . 4/11 – 4/7 . 5/11 giúp mình đc ko ? 19/04/2023 8/7 + -6/7 . 4/11 – 4/7 . 5/11 giúp mình đc ko ?
Giải đáp: $\frac{8}{7}$ + $\frac{-6}{7}$ . $\frac{4}{11}$ – $\frac{4}{7}$ . $\frac{5}{11}$ = $\frac{8}{7}$ + $\frac{4}{7}$ . $\frac{-6}{11}$ – $\frac{4}{7}$ . $\frac{5}{11}$ = $\frac{8}{7}$ + $\frac{4}{11}$ . ($\frac{-6}{7}$ – $\frac{5}{7}$) = $\frac{8}{7}$ + $\frac{4}{7}$ . ($\frac{-6}{11}$ – $\frac{5}{11}$)= $\frac{8}{7}$ + $\frac{4}{7}$ . (-1)= $\frac{8}{7}$ – $\frac{4}{7}$= $\frac{4}{7}$ xin hay nhất Trả lời
= $\frac{8}{7}$ + $\frac{4}{7}$ . (-1)
= $\frac{8}{7}$ – $\frac{4}{7}$
= $\frac{4}{7}$