Question

[Nguyễn Yến Nhi]

A=(-4/5+4/3)+(-5/4+14/5)-7/3

B=8/3.2/5.3/8.10.19/92

C=-5/7.2/11+-5/7.9/14+12/7

Answer 1

[Nguyễn Phạm Hồng Anh]

Mk sửa đề nha :

\(C=\frac{-5}{7}.\frac{2}{11}+\frac{-5}{7}.\frac{9}{11}+\frac{12}{7}\)

   \(=\frac{-5}{7}.\left(\frac{2}{11}+\frac{9}{11}\right)+\frac{12}{7}\)

   \(=\frac{-5}{7}.1+\frac{12}{7}\)

   \(=\frac{-5}{7}+\frac{12}{7}\)

   \(=1\)

Study well ! >_<

Answer 2

[Phạm Long Vũ]

Nhìn phát sốt