1/2+1/3+1/4+1/5+1/6+1/7+1/8二分之一加到八分之一,请把步骤写出来,谢谢!

Question

1/2+1/3+1/4+1/5+1/6+1/7+1/8
二分之一加到八分之一,请把步骤写出来,谢谢!

Answer 1

1/2+1/3+1/4+1/5+1/6+1/7+1/8
=(1/2+1/4+1/8)+(1/3+1/6)+1/5+1/7
=7/8+1/2+12/35
=11/8+12/35
=481/280