十七分之八乘以二十五分之二加上十七分之二乘以二十五分之九

2024-11-22 07:02:00
推荐回答(2个)
回答1:

解:8/17×2/25+2/17×9/25
  =8/17×2/25+9/17×2/25
  =(8/17+9/17)×2/25
  =1×2/25
  =2/25

回答2:

=2/17×4×2/25=2/17×9/25
=2/17×8/25=2/17×9/25

=2/17×(8/25+9/25)
=2/17×17/25
=2/25