40 / 60 = 4 /6

   5/ 100 = 1 / 20

40/80 = 5/4

còn đâu bạn so sánh nhé bạn k cho mình và kết bạn với mình nhé

40/60=2/3

5/100=1/20

40/80=1/2

\(\frac{1}{6}+\frac{5}{6}=\frac{6}{6}=1\)

\(\frac{25}{5}+\frac{2}{6}=\frac{150}{30}+\frac{10}{30}=\frac{160}{30}=\frac{32}{6}=\frac{16}{3}\)

\(\frac{12}{5}+\frac{6}{9}=\frac{108}{45}+\frac{30}{45}=\frac{138}{45}\)

\(\frac{11}{6}\)

\(\frac{16}{3}\)

\(\frac{46}{3}\)

\(\frac{1}{2}+\frac{1}{2}=\frac{2}{2}=1\)

\(\frac{5}{4}+\frac{5}{4}=\frac{10}{4}=\frac{5}{2}\)

\(\frac{6}{6}+\frac{6}{6}=\frac{12}{12}=1\)

Tk mk vs nha m.n !! ^^

1;2,5;2 kết quả lần lượt

\(\frac{6}{5}>\frac{5}{6}\)k nha bạn !

6/5>5/6

a, 5x7 / 6x7 và 6x6 / 7x6

= 30/42 và 36/42

5 phân số nằm giữa gồm có: 31/42 , 32/42 , 33/42 , 34/42 , 35/42

b, bạn làm tương tự nhé (con này lười rồi)

\(5\frac{5}{6}+6\frac{5}{6}=12\frac{4}{6}\)

\(5\frac{5}{6}+6\frac{5}{6}\)

\(=\frac{35}{6}+\frac{41}{6}\)

\(=\frac{76}{6}\)

\(a.\frac{3}{7}.\frac{5}{6}+\frac{5}{6}.\frac{4}{7}=\left(\frac{3}{7}+\frac{4}{7}\right).\frac{5}{6}=1.\frac{5}{6}=\frac{5}{6}\)

\(b.\frac{1}{6}:\frac{4}{5}+\frac{1}{8}:\frac{4}{5}=\left(\frac{1}{6}+\frac{1}{8}\right):\frac{4}{5}=\left(\frac{4}{24}+\frac{3}{24}\right):\frac{4}{5}=\frac{7}{24}:\frac{4}{5}=\frac{7.5}{24.4}\)\(=\frac{35}{96}\)

\(c.\frac{1}{6}:\frac{4}{5}-\frac{1}{8}:\frac{4}{5}=\left(\frac{1}{6}-\frac{1}{8}\right):\frac{4}{5}=\left(\frac{4}{24}-\frac{3}{24}\right):\frac{4}{5}\)\(=\frac{1}{24}:\frac{4}{5}=\frac{1.5}{24.4}=\frac{5}{96}\)

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

\(=\left(\frac{3}{7}+\frac{4}{7}\right)\cdot\frac{5}{6}\)

\(=1\cdot\frac{5}{6}\)

\(=\frac{5}{6}\)

b) \(\frac{1}{6}:\frac{4}{5}+\frac{1}{8}:\frac{4}{5}\)

\(=\left(\frac{1}{6}+\frac{1}{8}\right):\frac{4}{5}\)

\(=\frac{7}{24}:\frac{4}{5}\)

\(=\frac{35}{96}\)

c) \(\frac{1}{6}:\frac{4}{5}-\frac{1}{8}:\frac{4}{5}\)

\(=\left(\frac{1}{6}-\frac{1}{8}\right):\frac{4}{5}\)

\(=\frac{1}{24}:\frac{4}{5}\)

\(=\frac{5}{96}\)