BÀI 2: tìm số hữu tỹ X , biết rằng

a,\(\frac{-3}{2}-2X+\frac{3}{4}=-2\)2

b, (\(\frac{-2}{3}x-\frac{3}{5}\))(\(\frac{3}{-2}-\frac{10}{3}\))=\(\frac{2}{5}\)

c,\(\frac{x}{2}-\left(\frac{3x}{5}-\frac{13}{5}\right)=-\left(\frac{7}{5}+\frac{7}{10}.x\right)\)

d,\(\frac{2x-3}{3}+\frac{-3}{2}=\frac{5-3x}{6}-\frac{1}{3}\)

e,\(\frac{2}{3x}-\frac{3}{12}=\frac{4}{5}-\left(\frac{7}{x}-2\right)\)

\(8\frac{7}{10}\)+\(2\frac{3}{4}\)=

\(2\frac{7}{8}\)-\(1\frac{3}{8}\)=

\(3\frac{1}{3}\)x\(2\frac{4}{5}\)=

\(4\frac{1}{2}\):\(2\frac{1}{7}\)=

\(2\frac{1}{5}\)+\(1\frac{7}{10}\)=

\(8\frac{1}{4}\)-\(5\frac{1}{2}\)=

\(3\frac{4}{5}\)x\(\frac{10}{21}\)=

\(1\frac{4}{7}\):\(2\frac{3}{8}\)

tính nhanh nha

D=\(\frac{3}{2x4}+\frac{3}{4x6}+...+\frac{3}{98x100}\)

A=\(\frac{1}{2}+\frac{1}{3}+\frac{1}{6}+\frac{1}{12}\)

B=\(6\frac{2}{3}+7\frac{5}{8}+3\frac{1}{3}+4\frac{5}{8}\)

C=[\(4\frac{2}{5}+2\frac{3}{7}\)] - [\(2\frac{2}{5}-1\frac{4}{7}\)]

E=\(\frac{131313}{151515}+\frac{131313}{353535}+\frac{131313}{636363}+\frac{131313}{999999}\)

làm ơn giúp mik nha

mik đang cần gấp

mik sẽ tick(chắc chắn lun) cho người nhanh nhất

\(\frac{14}{16}\) -   \(\frac{6}{21}\)

\(\frac{9}{22}\) -   \(\frac{9}{33}\)

\(\frac{8}{15}\)+   \(\frac{4}{21}\)

\(\frac{15}{24}+2\)

\(\frac{4}{5}-\frac{1}{3}+\frac{1}{2}\)

\(\frac{5}{6}+\frac{3}{8}+\frac{1}{10}\)

\(\frac{1}{2}+\frac{1}{6}+\frac{1}{12}+\frac{1}{20}+\frac{1}{30}\)

So sánh:\(\frac{\frac{\frac{1}{2}}{\frac{3}{4}}}{\frac{\frac{5}{6}}{\frac{7}{8}}}+\frac{\frac{\frac{8}{7}}{\frac{6}{5}}}{\frac{\frac{4}{3}}{\frac{2}{1}}}\) và\(\frac{\frac{\frac{1}{2}}{\frac{3}{4}}+\frac{\frac{8}{7}}{\frac{6}{5}}}{\frac{\frac{5}{6}}{\frac{7}{8}}+\frac{\frac{4}{3}}{\frac{2}{1}}}\)và \(\frac{\frac{\frac{1}{2}+\frac{8}{7}}{\frac{3}{4}+\frac{6}{5}}}{\frac{\frac{5}{6}+\frac{4}{3}}{\frac{7}{8}+\frac{2}{1}}}\)và\(\frac{\frac{\frac{1+8}{2+7}}{\frac{3+6}{4+5}}}{\frac{5+4}{\frac{6+3}{2+1}}}\)

93 : x + 87 : x - 66 : x = 38

1\(\frac{1}{3}\): ( 1 \(\frac{2}{3}\)- x ) = \(\frac{8}{7}\)

\(\frac{1}{2}\)+ x : \(\frac{1}{6}\)= 2

( \(\frac{4}{5}\)+ \(\frac{3}{10}\)- \(\frac{1}{3}\)) 6 × \(\frac{4}{7}\)

( 8 × \(\frac{2}{3}\): \(\frac{1}{2}\)) × \(\frac{5}{8}\)- 3 \(\frac{1}{3}\)

Mình cần gấp

1.Thực hiện phép tính

a,\(\frac{5}{8}x\frac{4}{10}+\frac{2}{3}\)

b,\(\frac{5}{12}x\frac{4}{7}+\frac{5}{12}x\frac{3}{7}\)

c,\(\left(\frac{4}{5}+\frac{3}{10}-\frac{1}{5}\right)x6:\frac{4}{7}\)

2.So Sánh

a,\(\frac{5}{8}v\text{à}\frac{2}{3}\)

b.\(\frac{9}{14}v\text{à}\frac{17}{21}\)

c.\(\frac{418}{417}v\text{à}\frac{925}{926}\)

ai giải đúng đầu tiên mik tick

1.

\(\frac{1}{2}\)+\(\frac{2}{3}\)+\(\frac{3}{4}\)

\(\frac{4}{5}\)+\(\frac{4}{3}\)+\(\frac{6}{7}\)

\(\frac{1}{4}\)+\(\frac{2}{5}\)+\(\frac{1}{3}\)

\(\frac{3}{5}\)+\(\frac{5}{6}\)+\(\frac{7}{9}\)

\(\frac{8}{9}\)-\(\frac{5}{6}\)

\(\frac{99}{108}\)-\(\frac{40}{72}\)

\(\frac{16}{17}\)-\(\frac{12}{13}\)

\(\frac{99}{153}\)-\(\frac{75}{125}\)