Question

■五年级下册数学题■求学霸解答[求过程]

Answer 1

1-1/2-1/4-1/8-……-1/64
=1/2-1/4-1/8-.....-1/64
=2/4-1/4-1/8-.......-1/64
=1/4-1/8-....-1/64
=2/8-1/8-....-1/64
=1/8-....-1/64
=..............
=1/64。

Answer 2

1-1/2-1/4-1/8-……-1/64
=1-(1-1/2)-(1/2-1/4)-(1/4-1/8)-……-(1/32-1/64)
=1-1+1/2-1/2+1/4-1/4+1/8-……-1/32+1/64
=1/64

追问

有解析吗？

学霸，有解析吗