Question

[nguyễn chu pi]

1,TÍNH NHANH:
0,75-0,6+3/7+3/13
2,75-2,2+11/7+11/13

Answer 1

[OoO Kún Chảnh OoO]

 A= \(\frac{0,75+0,6-\frac{3}{7}-\frac{3}{13}}{2,75+2,2-\frac{11}{7}-\frac{11}{3}}\)

A= \(\frac{0,75+0,6-\frac{3}{7}-\frac{3}{13}}{\frac{11}{3}\left(0,75+0,6-\frac{3}{7}-\frac{3}{13}\right)}\)

A=\(\frac{1}{\frac{11}{3}}\)

A= \(\frac{3}{11}\)

Answer 2

[Lê Mai Trang]

mình không hiểu lắm