($\frac{5}{11}$+$\frac{6}{12}$) . 3 – ($\frac{18}{11}$+$\frac{22}{12}$) .3 16/08/2021 Bởi Eden ($\frac{5}{11}$+$\frac{6}{12}$) . 3 – ($\frac{18}{11}$+$\frac{22}{12}$) .3
($\frac{5}{11}$ + $\frac{6}{12}$) . 3 – ($\frac{18}{11}$ + $\frac{22}{12}$) . 3 = ($\frac{5}{11}$ . 3 + $\frac{6}{12}$ . 3) – ($\frac{18}{11}$ . 3 + $\frac{22}{12}$ . 3) = ($\frac{15}{11}$ + $\frac{18}{12}$) – ($\frac{54}{11}$ + $\frac{66}{12}$) = ($\frac{15}{11}$ – $\frac{54}{11}$) + ($\frac{18}{12}$ – $\frac{66}{12}$) = $\frac{-39}{11}$ + $\frac{-48}{12}$ = $\frac{-39}{11}$ + (-4) = $\frac{-83}{11}$ = -7$\frac{6}{11}$ Chúc học tốt!!! Bình luận
($\frac{5}{11}$ + $\frac{6}{12}$) . 3 – ($\frac{18}{11}$ + $\frac{22}{12}$) . 3
= ($\frac{5}{11}$ . 3 + $\frac{6}{12}$ . 3) – ($\frac{18}{11}$ . 3 + $\frac{22}{12}$ . 3)
= ($\frac{15}{11}$ + $\frac{18}{12}$) – ($\frac{54}{11}$ + $\frac{66}{12}$)
= ($\frac{15}{11}$ – $\frac{54}{11}$) + ($\frac{18}{12}$ – $\frac{66}{12}$)
= $\frac{-39}{11}$ + $\frac{-48}{12}$
= $\frac{-39}{11}$ + (-4)
= $\frac{-83}{11}$
= -7$\frac{6}{11}$
Chúc học tốt!!!
Bạn tham khảo :
– Trong hình nha
– Bổ sung dòng cuối :
$= \dfrac{173}{66}$