Toán 4 phần 9 x 2/7 – 2/7 x 1/9 + 2/7 x 5/9 + 2/7 21/07/2021 By Raelynn 4 phần 9 x 2/7 – 2/7 x 1/9 + 2/7 x 5/9 + 2/7
$\frac{4}{9}$ .$\frac{2}{7}$-$\frac{2}{7}$.$\frac{1}{9}$+$\frac{2}{7}$.$\frac{5}{9}$+ $\frac{2}{7}$ = $\frac{2}{7}.$($\frac{4}{9}$-$\frac{1}{9}$+$\frac{5}{9}+1)$ = $\frac{2}{7}$. $\frac{17}{9}$ = $\frac{34}{63}$ Trả lời
$\frac{4}{9}$ . $\frac{2}{7}$ – $\frac{2}{7}$ . $\frac{1}{9}$ + $\frac{2}{7}$ . $\frac{5}{9}$ + $\frac{2}{7}$ = ($\frac{4}{9}$ – $\frac{1}{9}$ + $\frac{5}{9}$ + 1) . $\frac{2}{7}$ = 1$\frac{8}{9}$ . $\frac{2}{7}$ = $\frac{34}{63}$ Chúc học tốt!!! Trả lời
$\frac{4}{9}$ .$\frac{2}{7}$-$\frac{2}{7}$.$\frac{1}{9}$+$\frac{2}{7}$.$\frac{5}{9}$+ $\frac{2}{7}$
= $\frac{2}{7}.$($\frac{4}{9}$-$\frac{1}{9}$+$\frac{5}{9}+1)$
= $\frac{2}{7}$. $\frac{17}{9}$
= $\frac{34}{63}$
$\frac{4}{9}$ . $\frac{2}{7}$ – $\frac{2}{7}$ . $\frac{1}{9}$ + $\frac{2}{7}$ . $\frac{5}{9}$ + $\frac{2}{7}$
= ($\frac{4}{9}$ – $\frac{1}{9}$ + $\frac{5}{9}$ + 1) . $\frac{2}{7}$
= 1$\frac{8}{9}$ . $\frac{2}{7}$
= $\frac{34}{63}$
Chúc học tốt!!!