3/5+6/15= 4/7x 7/5= 35/28-15/20 = 5/7:15/7= 5/2 – 1/6 : 3/4 14/15m x5/7+1/3 m 13/08/2021 Bởi Eliza 3/5+6/15= 4/7x 7/5= 35/28-15/20 = 5/7:15/7= 5/2 – 1/6 : 3/4 14/15m x5/7+1/3 m
Đáp án: Giải thích các bước giải: 3/5+6/15=9/15+6/15=1 4/7×7/5=28/35 35/28-15/20=700/560-420/560=280/560 5/7:15/7=5/7×7/15=35/105 (còn đâu thì tự rút gọn) 14/15m x5/7+1/3 m=308/315 xin ctlhn Bình luận
$\frac{3}{5}$+$\frac{6}{15}$= $\frac{9}{15}$+$\frac{6}{15}$= $\frac{15}{15}$=$1$ $\frac{4}{7}$x$\frac{7}{5}$= $\frac{28}{35}$=$\frac{4}{5}$ $\frac{35}{28}$- $\frac{15}{20}$= $\frac{5}{4}$- $\frac{3}{4}$= $\frac{2}{4}$= $\frac{1}{2}$ $\frac{5}{7}$:$\frac{15}{7}$=$\frac{5}{7}$x$\frac{7}{15}$= $\frac{35}{105}$= $\frac{1}{3}$ $\frac{5}{2}$-$\frac{1}{6}$:$\frac{3}{4}$=$\frac{5}{2}$-$\frac{1}{6}$x$\frac{4}{3}$=$\frac{5}{2}$- $\frac{2}{9}$= $\frac{45}{18}$- $\frac{4}{18}$= $\frac{41}{18}$ $\frac{14}{15}m$x$\frac{5}{7}$+$\frac{1}{3}m$=$\frac{2}{3}m$+$\frac{1}{3}m$ =$1m$ Xin hay nhất!!!!!!!! Bình luận
Đáp án:
Giải thích các bước giải:
3/5+6/15=9/15+6/15=1
4/7×7/5=28/35
35/28-15/20=700/560-420/560=280/560
5/7:15/7=5/7×7/15=35/105 (còn đâu thì tự rút gọn)
14/15m x5/7+1/3 m=308/315
xin ctlhn
$\frac{3}{5}$+$\frac{6}{15}$= $\frac{9}{15}$+$\frac{6}{15}$= $\frac{15}{15}$=$1$
$\frac{4}{7}$x$\frac{7}{5}$= $\frac{28}{35}$=$\frac{4}{5}$
$\frac{35}{28}$- $\frac{15}{20}$= $\frac{5}{4}$- $\frac{3}{4}$= $\frac{2}{4}$= $\frac{1}{2}$
$\frac{5}{7}$:$\frac{15}{7}$=$\frac{5}{7}$x$\frac{7}{15}$= $\frac{35}{105}$= $\frac{1}{3}$
$\frac{5}{2}$-$\frac{1}{6}$:$\frac{3}{4}$=$\frac{5}{2}$-$\frac{1}{6}$x$\frac{4}{3}$=$\frac{5}{2}$- $\frac{2}{9}$= $\frac{45}{18}$- $\frac{4}{18}$= $\frac{41}{18}$
$\frac{14}{15}m$x$\frac{5}{7}$+$\frac{1}{3}m$=$\frac{2}{3}m$+$\frac{1}{3}m$ =$1m$
Xin hay nhất!!!!!!!!