Question

cho phép tính :1*2*3*4*5 phần 3*4*5*6*7

Answer 1

\(\frac{1x2x3x4x5}{3x4x5x6x7}=\frac{1}{6x7}=\frac{1}{42}\)

Answer 2

1*2*3*4*5 phan 3*4*5*6 = 1 phan 42

k nha ban

Answer 3

\(\frac{1x2x3x4x5}{3x4x5x6x7}=\frac{1x2}{6x7}=\frac{2}{42}=\frac{1}{21}\)

Answer 4

1*2*3*4*5 phần 3*4*5*6* = 120 phần 2520