{9/5-3/5} : {15/3-11/5}
6/5:14/5
6/5x5/14=3/7
Câu 2:
{2/1x3+2/3x5+...+2/19x21} x{1/28-5/2x1/70}
{2/1x3+2/3x5+...+2/19x21} x{1/28-1/28}
{2/1x3+2/3x5+...+2/19x21} x0=0
tính
a) \(3\frac{4}{5}-2\frac{3}{4}:1\frac{1}{8}=????\)
b) \(4\frac{5}{7}:1\frac{5}{6}+2\frac{7}{15}x\frac{21}{74}=???????\)
tính
a) \(3\frac{4}{5}-2\frac{3}{4}:1\frac{1}{8}=????\)
b) \(4\frac{5}{7}:1\frac{5}{6}+2\frac{7}{15}x\frac{21}{74}=???????\)
tính
a) \(3\frac{4}{5}-2\frac{3}{4}:1\frac{1}{8}=????\)
b) \(4\frac{5}{7}:1\frac{5}{6}+2\frac{7}{15}x\frac{21}{74}=???????\)
\(HELP\) \(ME\)\(!\)
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 nhânSo 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\(\frac{\frac{\frac{1+8}{2+7}}{\frac{3+6}{4+5}}}{\frac{5+4}{\frac{6+3}{2+1}}}\)
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) \(x:\frac{4}{5}=\frac{25}{8}:\frac{5}{4}\)
\(8\frac{7}{10}\)+\(2\frac{3}{4}\)=
\(2\frac{7}{8}\)-\(1\frac{3}{8}\)=
\(3\frac{1}{3}\)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\(\frac{10}{21}\)=
\(1\frac{4}{7}\):\(2\frac{3}{8}\)
ĐỀ: TÌM X
\(a,\frac{7}{5}:x+\frac{3}{2}=\frac{16}{3}\)
\(b,x:\frac{1}{5}+\frac{1}{7}=\frac{3}{5}.\frac{18}{21}\)
\(c,x-1\frac{1}{3}:2=\frac{5}{7}\)
\(d,x+2\frac{3}{5}.\frac{1}{6}=\frac{35}{36}\)
\(e,\left(x+\frac{3}{2}\right):2=\frac{7}{10}+\frac{1}{5}\)
ai trả lời được mik tik cho
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\(\frac{3}{8}\)
