Question

Tính :

\(a,3\frac{1}{2}+5\frac{1}{3}\)

\(b,4\frac{1}{4}-2\frac{2}{3}\)

\(c,7\frac{2}{9}\times1\frac{3}{5}\)

\(d,6\frac{1}{4}\div2\frac{1}{3}\)

Answer 1

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Answer 2

Tại cô giáo chưa dậy đến đã giao bài về nhà nên mình mới không biết làm !!!

Answer 3

dễ mà!!!

Answer 4

Nao Tomori

\(a,3\frac{1}{2}+5\frac{1}{3}=\frac{7}{2}+\frac{16}{15}=\frac{105}{30}+\frac{32}{30}=\frac{137}{30}\)

\(b,4\frac{1}{4}-2\frac{2}{3}=\frac{17}{4}-\frac{8}{3}=\frac{51}{12}+\frac{32}{12}=\frac{73}{12}\)

\(c,7\frac{2}{9}\times1\frac{3}{5}=\frac{65}{9}\times\frac{8}{5}=\frac{520}{45}\)

\(d,6\frac{1}{4}:2\frac{1}{3}=\frac{25}{4}:\frac{7}{3}=\frac{75}{28}\)

Answer 5

\(a.\frac{7}{2}+\frac{16}{3}=\frac{21}{6}+\frac{32}{6}=\frac{53}{6}\)

\(b.\frac{17}{4}-\frac{8}{3}=\frac{51}{12}-\frac{32}{12}=\frac{19}{12}\)

\(c.\frac{65}{9}\times\frac{8}{5}=\frac{65\times8}{9\times5}=\frac{520}{45}=\frac{104}{9}\)

\(d.\frac{25}{4}\div\frac{7}{3}=\frac{25}{4}\times\frac{3}{7}=\frac{75}{28}\)

Answer 6

\(3\frac{1}{2}+5\frac{1}{3}=\frac{7}{2}+\frac{16}{3}=\frac{21}{6}+\frac{32}{6}=\frac{53}{6}=8\frac{5}{6}\)

\(b,4\frac{1}{4}-2\frac{2}{3}=\frac{17}{4}-\frac{8}{3}=\frac{51}{12}-\frac{32}{12}=\frac{83}{12}=6\frac{11}{12}\)

\(c,7\frac{2}{9}\times1\frac{3}{5}=\frac{65}{9}\times\frac{8}{5}=\frac{65\times8}{9\times5}=\frac{520}{45}=11\frac{25}{45}\)

\(d,6\frac{1}{4}\div2\frac{1}{3}=\frac{25}{4}\div\frac{7}{3}=\frac{25}{4}\times\frac{3}{7}=\frac{75}{28}=2\frac{19}{28}\)

Answer 7

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Answer 8

tran nhung tra loi dung day

Answer 9

a.\(\frac{7}{2}\)+ \(\frac{16}{3}\)=\(\frac{21}{6}\)+\(\frac{32}{6}\)= \(\frac{53}{6}\)

b.\(\frac{17}{4}\)-\(\frac{8}{3}\)=\(\frac{51}{12}\)-\(\frac{32}{12}\)=\(\frac{19}{12}\)

c.\(\frac{65}{9}\)x\(\frac{8}{5}\)=\(\frac{65x8}{9x5}\)=\(\frac{520}{45}\)=\(\frac{104}{9}\)

d\(\frac{25}{4}\):\(\frac{7}{3}\)=\(\frac{25}{4}\)x\(\frac{3}{7}\)=\(\frac{75}{28}\)