Question

[Hatsune Miku]

thực hiện phép tính 

a/ \(\frac{15}{34}\)+ \(\frac{7}{21}\)+ \(\frac{19}{34}\)- 1\(\frac{15}{17}\)+ \(\frac{2}{3}\)

b/ 16\(\frac{2}{7}\): (\(\frac{-3}{5}\)) - 28\(\frac{2}{7}\): (\(\frac{-3}{5}\))

c/ ( -2 ) ³ . (\(\frac{3}{4}\)-  0,25 ) : ( 2\(\frac{1}{4}\)-  1\(\frac{1}{6}\))

GIÚP MK NHÉ , ARIGATO , CÁM ƠN RẤT NHIỀU

Answer 1

[HỒ THỊ PHƯƠNG THẢO]

a/ \(\frac{15}{34}+\frac{7}{21}+\frac{19}{34}-\frac{32}{17}+\frac{14}{21}=\left(\frac{15}{34}+\frac{19}{34}\right)+\left(\frac{7}{21}+\frac{14}{21}\right)-\frac{32}{17}=1+1-\frac{32}{17}=\frac{2}{17}\)

Answer 2

[Hatsune Miku]

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