1/5+3/7+6/9+2/7+4/9+8/5. 1/3+5/12+x=13/12 19/08/2021 Bởi Eloise 1/5+3/7+6/9+2/7+4/9+8/5. 1/3+5/12+x=13/12
1/5+3/7+6/9+2/7+4/9+8/5 =(1/5+8/5)+(3/7+2/7)+(6/9+4/9) =9/5+5/7+10/9 =88/35+10/9 =1142/315 1/3+5/12+x=13/12 5/12+x=13/12-1/3 5/12+x=9/12 x=9/12-5/12=4/12 x=1/3 Nhớ vote 5* và ctlhn nhé! Chúc bạn học tốt! Bình luận
$\frac{1}{5}$+$\frac{3}{7}$ +$\frac{6}{9}$ +$\frac{2}{7}$ +$\frac{4}{9}$ +$\frac{8}{5}$ =($\frac{1}{5}$+$\frac{8}{5}$ )+($\frac{3}{7}$ +$\frac{2}{7})+($\frac{6}{9}$ +$\frac{4}{9}$ ) =$\frac{9}{5}$+$\frac{5}{7}$ +$\frac{10}{9}$ =$\frac{567}{315}$ +$\frac{225}{315}$ +$\frac{350}{315}$ =$\frac{1142}{315}$ $\frac{1}{3}$+$\frac{5}{12}$ +x=$\frac{13}{12}$ =>$\frac{1}{3}$+x=$\frac{13}{12}$ +$\frac{5}{12}$ =>$\frac{1}{3}$+x=$\frac{8}{12}$=$\frac{2}{3}$ =>x=$\frac{2}{3}$ -$\frac{1}{3}$ =>x =$\frac{1}{3}$ Bình luận
1/5+3/7+6/9+2/7+4/9+8/5
=(1/5+8/5)+(3/7+2/7)+(6/9+4/9)
=9/5+5/7+10/9
=88/35+10/9
=1142/315
1/3+5/12+x=13/12
5/12+x=13/12-1/3
5/12+x=9/12
x=9/12-5/12=4/12
x=1/3
Nhớ vote 5* và ctlhn nhé!
Chúc bạn học tốt!
$\frac{1}{5}$+$\frac{3}{7}$ +$\frac{6}{9}$ +$\frac{2}{7}$ +$\frac{4}{9}$ +$\frac{8}{5}$
=($\frac{1}{5}$+$\frac{8}{5}$ )+($\frac{3}{7}$ +$\frac{2}{7})+($\frac{6}{9}$ +$\frac{4}{9}$ )
=$\frac{9}{5}$+$\frac{5}{7}$ +$\frac{10}{9}$
=$\frac{567}{315}$ +$\frac{225}{315}$ +$\frac{350}{315}$
=$\frac{1142}{315}$
$\frac{1}{3}$+$\frac{5}{12}$ +x=$\frac{13}{12}$
=>$\frac{1}{3}$+x=$\frac{13}{12}$ +$\frac{5}{12}$
=>$\frac{1}{3}$+x=$\frac{8}{12}$=$\frac{2}{3}$
=>x=$\frac{2}{3}$ -$\frac{1}{3}$
=>x =$\frac{1}{3}$