Question

[Nguyễn Mai Dung]

Bài 1 (1 điểm): Tính

a) \(\frac{1}{6}\)+\(\frac{3}{4}\) = ....................................................................................................

b) \(\frac{2}{3}\)x\(\frac{7}{5}\) = ...................................................................................................

c ) \(\frac{2}{3}\)-\(\frac{3}{8}\)= ...................................................................................................

d) \(\frac{3}{7}\):\(\frac{3}{5}\) = .................................................................................................

Answer 1

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a) \(\frac{1}{6}+\frac{3}{4}=\frac{2}{12}+\frac{9}{12}=\frac{11}{12}.\)

b) \(\frac{2}{3}\times\frac{7}{5}=\frac{14}{15}\)

c) \(\frac{2}{3}-\frac{3}{8}=\frac{16}{24}-\frac{9}{24}=\frac{7}{24}\)

d) \(\frac{3}{7}\div\frac{3}{5}=\frac{3}{7}\times\frac{5}{3}=\frac{3\times5}{7\times3}=\frac{5}{7}\)