Question

1 1/2•1 1/3 1 1/3•1 1/4•1 1/5•1 1/6-1/2
пж помагите​

Answer 1

1 1/2•1 1/3 1 1/3•1 1/4•1 1/5•1 1/6-1/2=3/2*4/3*5/4*6/5*6/7-1/2=1/2*7-1/2=7/2-1/2=2