\(x+3\frac{1}{5}=4\)
\(x+\frac{16}{5}=4\)
\(x=4-\frac{16}{5}\)
\(\Rightarrow x=\frac{4}{5}\)
x+ \(3\frac{1}{5}\)= 4
x +\(\frac{16}{5}\)= 4
x + 3,2 = 4
x = 4 - 3,2
x = 0,8
\(HELP\) \(ME\)\(!\)
1.
\(\frac{3}{4}x\frac{8}{5}:1\frac{1}{6}=\)\(2\frac{1}{3}x1\frac{1}{4}-\frac{7}{5}=\)\(4\frac{2}{3}+1\frac{1}{4}+2\frac{1}{3}+2\frac{3}{7}=\)2.
\(x.\frac{1}{2}=\frac{3}{4}+\frac{1}{5}\)\(x-\frac{1}{5}=\frac{2}{3}.\frac{9}{4}\)\(x.\frac{1}{5}+\frac{2}{3}=\frac{5}{4}\)\(\frac{13}{5}:x-\frac{1}{2}=\frac{4}{5}.\frac{15}{16}\)\(x:\frac{4}{9}+\frac{1}{3}=\frac{2}{5}.1\frac{13}{2}\)Chú ý: Dấu chấm là dấu nhân\(A=\left(6:\frac{3}{5}-1\frac{1}{6}x\frac{6}{7}\right):\left(4\frac{1}{5}x\frac{10}{11}+5\frac{2}{11}\right)\)\(B=\left(1-\frac{1}{2}\right)x\left(1-\frac{1}{4}\right)x.......x\left(1-\frac{1}{2015}\right)x\left(1-\frac{1}{2016}\right)\)
\(C=5\frac{9}{10}:\frac{3}{2}-\left(2\frac{1}{3}x4\frac{1}{2}-2x2\frac{1}{3}\right):\frac{7}{4}\)
Tính nhanh : \(\frac{1}{2}x\frac{1}{2}+\frac{1}{2}x\frac{1}{3}+\frac{1}{3}x\frac{1}{4}+\frac{1}{4}x\frac{1}{5}+\frac{1}{5}x\frac{1}{6}\)
Tìm x trong biểu thức sau
\(\left(3\frac{3}{4}:\frac{1}{4}-2\frac{2}{5}\cdot1\frac{1}{4}\right)-\left(3\frac{1}{2}:2,5-\frac{1}{5}\right)-\frac{1}{5}\cdot x=\frac{51}{5}\)
Tìm \(x\):
a)\(x\) x \(3\frac{1}{3}=3\frac{1}{3}:4\frac{1}{4}\)
b)\(5\frac{2}{3}:x=3\frac{2}{3}-2\frac{1}{2}\)
c)\(\frac{x-1}{49}+\frac{x-2}{48}+\frac{x-3}{47}+\frac{x-4}{46}+\frac{x-5}{45}-5=0\)
Tìm x
a \(\frac{3}{4}+\frac{1}{4}xX=2\)
b X - \(\frac{2}{3}x\frac{9}{4}=2,5-\frac{1}{2}\)
c \(2xX+\frac{1}{3}=\frac{4}{3}\)
d \(X:\frac{2}{3}+0,75=\frac{9}{4}+3\)
e \(\frac{6}{4}:X+\frac{1}{2}=\frac{9}{4}x\frac{2}{3}\)
f \(Xx\frac{3}{5}-\frac{2}{5}=3\frac{3}{4}-1\)
4/15 x 5/14 =
3/4: 5/12=
3\(\frac{1}{2}\)+2\(\frac{2}{3}\)
5\(\frac{3}{4}\)-1\(\frac{4}{5}\)
1\(\frac{3}{5}\)x\(\frac{3}{8}\)
tìm x:
a) \(x-\frac{5}{7}-\frac{13}{14}=1\) b) \(\frac{3}{5}+x+1\frac{1}{5}=\frac{11}{3}\) c) \(x.\frac{4}{5}:2=\frac{6}{7}\) d) \(\frac{6}{5}:x:\frac{5}{4}=\frac{10}{15}\)
Tìm x lá số tự nhiên biết:
a) \(\frac{2}{3}+\frac{3}{4}\)< x < \(1\frac{1}{3}+\frac{4}{5}\)
b) \(\frac{5}{6}-\frac{1}{4}\) < x < \(2\frac{1}{3}-\frac{2}{5}\)
Tìm X biết
a) \(x\cdot\frac{2}{7}\cdot\frac{3}{4}=\frac{5}{21}\)
b) \(x\cdot\frac{1}{2}=\frac{1}{3}\)
c) \(x:\frac{4}{5}=\frac{25}{8}:\frac{5}{4}\)
