Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
c2
6/11 x 3/7+ 5/11 x 3/7
=18/77+15/77
=33/77 rut gon voi 11 = 3/7
C1 : \(\left(\frac{9}{5}+\frac{3}{2}\right):\frac{7}{6}\)
\(=\frac{33}{10}:\frac{7}{6}\)
\(=\frac{99}{35}\)
C2 :
\(\left(\frac{9}{5}+\frac{3}{2}\right):\frac{7}{6}\)
\(=\frac{9}{5}:\frac{7}{6}+\frac{3}{2}:\frac{7}{6}\)
\(=\frac{54}{35}+\frac{9}{7}\)
\(=\frac{99}{35}\)
~ Chúc học tốt ~
Ai ngang qua xin để lại 1 L - I - K - E
Cách 1 : \(\left(\frac{9}{5}+\frac{3}{2}\right):\frac{7}{6}=\frac{33}{10}:\frac{7}{6}=\frac{33}{10}x\frac{6}{7}=\frac{99}{35}\)
Cách 2 : \(\left(\frac{9}{5}+\frac{3}{2}\right):\frac{7}{6}=\frac{9}{5}:\frac{7}{6}+\frac{3}{2}:\frac{7}{6}=\frac{9}{5}x\frac{6}{7}+\frac{3}{2}x\frac{6}{7}=\frac{54}{35}+\frac{9}{7}=\frac{99}{35}\)
a, \(\frac{7}{5}+\frac{9}{7}+\frac{6}{5}+\frac{11}{7}\)
C1: \(\frac{94}{35}+\frac{6}{5}+\frac{11}{7}=\frac{136}{35}+\frac{11}{7}=5\frac{16}{35}\)
C2: \(=\left(\frac{7}{5}+\frac{6}{5}\right)+\left(\frac{9}{7}+\frac{11}{7}\right)=\frac{13}{5}+\frac{20}{7}=5\frac{16}{35}\)
b,
C1 : \(\frac{8}{14}+\frac{2}{11}+\frac{12}{14}+\frac{31}{11}=\frac{4}{7}+\frac{2}{11}+\frac{6}{7}+\frac{31}{11}=\frac{58}{77}+\frac{6}{7}+\frac{31}{11}=\frac{124}{77}+\frac{31}{11}=4\frac{3}{7}\)
C2:
\(\frac{4}{7}+\frac{2}{11}+\frac{6}{7}+\frac{31}{11}=\left(\frac{4}{7}+\frac{6}{7}\right)+\left(\frac{2}{11}+\frac{31}{11}\right)=\frac{10}{7}+3=3\frac{10}{7}=4\frac{3}{7}\)
**** cko t nha , xin xin đó
1/4*1/2+1/6*1/2=1/8+1/12=20/96 C2 ( 1/4+1/6)*1/2
=10/24*1/2=10/48
b,(3/2-2/5)*1/3=11/10*1/3 C2 3/2*1/3+2/5*1/3
=3/6+2/15= 53/90
=11/30
\(\left(\frac{1}{4}+\frac{1}{6}\right)x\frac{1}{2}\) \(\left(\frac{3}{2}-\frac{2}{5}\right)x\frac{1}{3}\)
\(c1:=\frac{5}{12}x\frac{1}{2}=\frac{5}{24}\) \(c1:\frac{11}{10}x\frac{1}{3}=\frac{11}{30}\)
\(c2:=\frac{1}{4}x\frac{1}{2}+\frac{1}{6}x\frac{1}{2}\) \(c2:\frac{3}{2}x\frac{1}{3}-\frac{2}{5}x\frac{1}{3}\)
\(=\frac{1}{8}+\frac{1}{12}=\frac{12}{96}+\frac{8}{96}=\frac{20}{96}=\frac{5}{24}\) \(=\frac{1}{2}-\frac{2}{15}=\frac{11}{30}\)
CHÚC BẠN HỌC GIỎI
nhiều thế ren giải được ma bik giải xng rồi có dc chi hông?
bạn tíc cho mình nha
a.c1:=173.26=4498.c2:=173.26=173.20+173.6=3460+1038=4498
b.c1:=(2935+1055)/5=3990/5=798.c2:=(2935+1055)/5=2935.1/5+1055.1/5=587+211=798
c.c1:=682.49=33418.c2:=682.49=682.40+682.9=27280+6138=33418
d.c1:=2442/6+16596/6=407+2766=3173.c2:=2442/6+16596/6=(2442+16596)/6=19038/6=3173