Question

[NGÔ BẢO CHI]

giải giúp gấp

Answer 1

[Nguyễn Minh Hiếu]

 Bài 1:
 a. (72306 : 351 + 5794) - 142 x 37
 = (206 + 5794) - 142 x 37
 = 6000 - 142 x 37
 = 6000 - 5254
 = 746
 b.\(5\times\frac{2}{7}:\frac{5}{35}-\frac{3}{4}\)
 \(=\frac{10}{7}.\frac{1}{7}-\frac{3}{4}\)
 \(=\frac{10}{49}-\frac{3}{4}\)
 \(=\frac{40}{196}-\frac{147}{196}\)
 \(=\frac{40}{196}+\frac{-147}{196}\)
 \(=\frac{-107}{196}\)
  ~HT~

Answer 2

[NGÔ BẢO CHI]

thanks