Question

请问，这道数学题怎么解

5/3-[(6.28X2/15+3.72÷15/2)X1.8-5/3X0.82 最终得数等于多少？

Answer 1

5/3-[(6.28X2/15+3.72÷15/2)X1.8-5/3X0.82
=5/3-[（6.28+3.72）X2/15]X1.8-5/3X0.82
=5/3-4/3X1.8-5/3X0.82
=5/3X（1-0.82）-2.4
=3-2.4
=0.6

Answer 2

5/3-[(6.28X2/15+3.72÷15/2)X1.8-5/3X0.82 =5/3-(10X2/15)X1.8-5/3X0.82
= 5/3-(4/5)(5/3)X1.8-5/3X0.82=-(5/3)X1.26=-5X0.42=-2.1

Answer 3

5/3-[(6.28X2/15+3.72÷15/2)X1.8-5/3X0.82
=5/3-[（6.28+3.72）X2/15]X1.8-5/3X0.82
=5/3-4/3X1.8-5/3X0.82
=5/3X（1-0.82）-2.4
=3-2.4
=0.6

Answer 4

5/3-[(6.28X2/15+3.72÷15/2)X1.8-5/3X0.82
=5/3-[(6.28X2/15+3.72X2/15)X1.8-5/3X0.82
=5/3-[(6.28X+3.72)X2/15X1.8-5/3X0.82
=5/3-4/3X1.8-5/3X0.82
=5/3X(1-0.82)-4/3X1.8
=5/3X1.8-4/3X1.8
=(5/3-4/3)X1.8
=1/3X1.8
=0.6

Answer 5

如果你的题目是这样的5/3-[(6.28X2/15+3.72÷15/2)X1.8-5/3X0.82]=19/30

你好像少了一边的括弧 ,或者多了 答案会差很多的