\(10-\frac{5}{6}=\frac{60}{6}-\frac{5}{6}\)
\(=\frac{60-5}{6}\)
\(=\frac{55}{6}\)
\(10-\frac{5}{6}=\frac{60}{6}-\frac{5}{6}\)
\(=\frac{60-5}{6}\)
\(=\frac{55}{6}\)
\(\frac{1}{10}+\frac{2}{10}+\frac{3}{10}+\frac{4}{10}+\frac{5}{10}+\frac{6}{10}+\frac{7}{10}+\frac{8}{10}+\frac{9}{10}\)
kb voi mk nha
tính nhanh :
\(\frac{1}{10}+\frac{2}{10}+\frac{3}{10}+\frac{4}{10}+\frac{5}{10}+\frac{6}{10}+\frac{7}{10}+\frac{8}{10}+\frac{9}{10}=???????????\)
\(a,\frac{1}{10}+\frac{2}{10}+\frac{3}{10}+\frac{4}{10}+\frac{5}{10}+\frac{6}{10}+\frac{7}{10}+\frac{8}{10}+\frac{9}{10}\)
\(b,9x\left(\frac{262626}{272727}+\frac{88888}{99999}\right)\)
Điền thêm 3 phân số thích hợp vào chỗ chấm:
\(6=\frac{6}{1}=\frac{12}{2}=...\)
\(5\div9=\frac{5}{9}=\frac{10}{18}\)\(=...\)
\(1=\frac{3}{3}=\frac{5}{5}=...\)
\(0=\frac{0}{7}=\frac{0}{10}=...\)
Tính
\(13\frac{1}{4}-2\frac{5}{27}-10\frac{5}{6}\)
tính nhanh :
\(\frac{1}{2}+\frac{2}{4}+\frac{3}{6}+\frac{4}{8}+\frac{5}{10}+\frac{6}{12}=?\)
A =\(\frac{\left[3+\frac{1}{4}\right]-\frac{2}{5}}{\left[5-\frac{1}{6}\right]+\frac{7}{10}}\)
thực hiện : \(\frac{3}{10}\)+ \(\frac{6}{10}\)+ \(\frac{2}{5}\)+ \(\frac{7}{10}\)
bài 1 : tính phân số:
a) \(\frac{5}{7}+\frac{4}{9}=?;\frac{4}{5}-\frac{2}{3}=?;\frac{9}{11}+\frac{3}{8}=?;\frac{16}{25}-\frac{2}{5}=?\)=?
b)\(5+\frac{3}{5}=?;10-\frac{9}{16}=?;\frac{2}{3}-\left(\frac{1}{6}+\frac{1}{8}\right)=?\)
c)\(\frac{5}{7}+\frac{7}{6}=?;\frac{7}{12}+\frac{17}{18}=?;\frac{9}{8}+\frac{15}{32}=?;4+\frac{35}{45}=?\)
d)\(\frac{11}{4}-\frac{15}{16}=?;\frac{5}{6}-\frac{5}{8}=?;\frac{196}{64}-2=?;3-\frac{13}{9}=?\)
e)\(\frac{8}{5}+\frac{7}{6}+\frac{5}{9}-2=?;3-\frac{5}{6}-\frac{4}{9}+\frac{32}{24}=?\)
So sánh hai phân số:
\(\frac{6}{5}and\frac{5}{6}\);\(\frac{8}{9}and\frac{21}{81}\);\(\frac{9}{63}and\frac{90}{7}\);\(\frac{8}{81}and\frac{10}{9}\)