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8/1×2.75+0.125×1又4/1+8/1=

全部换算成分数,还有写分数分母要写后面 8分之1是1/8 1/8×2.75+0.125×1又1/4+1/8 =1/8×2又3/4+1/8×1又1/4+1/8 =1/8×(2又3/4+1又1/4+1) =1/8×5 =5/8 8分之5

2.46875

1/8×2.75+0.125×17/4+12.5% =1/8×2.75+1/8×4.25+1/8×1 =1/8×(2.75+4.25+1) =1/8×8 =

0.125×2.75+0.125×4.25+12.5% =0.125×2.75+0.125×4.25+0.125 =0.125×(2.75+4.25+1) =0.125×8 =1

3.75÷:

(1)158+57+838=(158+838)+57=10+57=1057(2)2.75÷8+0.125×4.25+12.5%=2.75×18+18×4.25+18=(2.75+4.25+1)×18=8×18=1(3)24×(712+56-34) =24×712+24×56-24×34=14+20-18=16 (4)89×[34+(716-38)]=89×[34+116]=89×1316=1318

13.75÷0.125-2.75 =110-2.75 =107.25

6.8x0.75÷0.5,3.75÷0.125-2.75,1.53+23.4÷7.2 就是一个加法,乘法,除法和减法的连等,8=6.8x0.75÷0.5,3.75÷0.185-2.75,1.58+23.4÷7.2 8就是之类的 如有疑问,请追问;如已解决,请采纳

1/8乘以2.75加0.125乘以1/4加12.5%的简便运算 1/8乘以2.75加0.125乘以1/4加12.5% =1/8*(2.75+0.25+1) =1/8*4 =1/2

递等式计算 3.75÷0.125-2.75 =30-2.75 =27.25

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