5.6+2/3
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5.6+2/35.6+2/35.6+2/35.6+2/3=5(6/10)+2/3=5(3/5)+2/3=(5*5+3)/5+2/3=28/5+2/3=28*3/5*3+2*5/3*5=(28*3+2*
5.6+2/3
5.6+2/3
5.6+2/3
5.6+2/3
=5(6/10)+2/3
=5(3/5)+2/3
=(5*5+3)/5+2/3
=28/5+2/3
=28*3/5*3+2*5/3*5
=(28*3+2*5)/15
=(84+10)/15
=94/15
5.6+2/3=56/10+2/3=168/30+20/30=188/30再化简6 4/15
5.6+2/3=5+3/5+2/3=5+9/15+10/15=5+19/15=6+4/15=6(4/15)
即6又15分之4
5.6+2/3
5.6-x=3(5-2x)
5.6+2X=11.6-3X,求X
5.6x-x=3x(5-2)求解
计算:(-9又2/3)+(-5.6)+(9又2/3)+(-5.6)+(-9) (
0.1:0.4 16:20 0.15:3 2/3:1/2 5.6:4.2 168:84 1:0.25
计算(4/9)^(1/2)+5.6^0-(64/27)^(-2/3)+0.125^(-1/3)
3x+2y=5.4 2x+3y=5.6
15 25 51 -2 -34 -0.8 -5.6 0 3/2 5/3,哪些是正数
一、5.6-2(x-7.4)=12.4 二、 3(X-33)=X-3
把1.2.3.4.5.6.7.8.9九个自然数分成3个三位数,( )( )( )=( )( )( )/2=( )( )( )/3
3道填空 5.6.7
x+5.6=3x
8.4÷4 3.2÷2 4.5÷3 5.6÷4 7.2÷2
5.6.
5.6.
5.6.
5.6.