分数计算题:1⼀2+3⼀4+7⼀8+15⼀16+31⼀32+63⼀64

2024-11-19 13:24:39
推荐回答(3个)
回答(1):

分数计算题:1/2+3/4+7/8+15/16+31/32+63/64,解:
1/2+3/4+7/8+15/16+31/32+63/64
= 1-1/2+1-1/4+1-1/8+1-1/16+1-1/32+1-1/64
= 6-(1/2+1/4+...+1/64)
= 6-63/64
=5又1/64

回答(2):

1/2+3/4+7/8+15/16+31/32+63/64

= 1-1/2+1-1/4+1-1/8+1-1/16+1-1/32+1-1/64

= 6-(1/2+1/4+...+1/64)

= 6-63/64

=5又1/64

回答(3):

1/2+3/4+7/8+15/16+31/32+63/64

= 1-1/2+1-1/4+1-1/8+1-1/16+1-1/32+1-1/64

= 6-(1/2+1/4+...+1/64)

= 6-63/64

= 5+1/64

= 321/64