Question

计算（能简算的要简算噢）：375+450÷18×2.5 （4/5+1/4）÷7/3+7/10 很急 啊 要过程

Answer 1

375+450÷18×2.5
=375+25×18÷18×2.5
=375+25×2.5
=375+62.5
=437.5

（4/5+1/4）÷7/3+7/10
=(16/20+5/20)×3/7+7/10
=21/20×3/7+7/10
=9/20+14/20
=23/20
=1.15

Answer 2

375+450÷18×2.5
=375+450÷9×（2×10÷4）
=375+50×5
=375+250
=625

（4/5+1/4）÷7/3+7/10
=（16÷20+5÷20)×3÷7+7÷10
= 21÷20÷7×3+7÷10
= (21÷7)×3÷20+14÷20
= 3×3÷20+14÷20
=(9+14)÷20
=23÷20
=1.15

追问

（4/5+1/4）÷7/3+7/10 这个能算的简单一些么 好长啊
=（16÷20+5÷20)×3÷7+7÷10
= 21÷20÷7×3+7÷10
= (21÷7)×3÷20+14÷20
= 3×3÷20+14÷20
=(9+14)÷20
=23÷20
=1.15

追答

（4/5+1/4）÷7/3+7/10
=（16÷20+5÷20)×3÷7+7÷10
= 21÷20÷7×3+7÷10
= (21÷7)×3÷20+14÷20
=23÷20
=1.15