5/3-5/8=5/3*5/8;9/2-9/11=9/2*9/11;10/7-10/17=10/7*10/17;...所发现的规律用含字母a,b的等式表达
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5/3-5/8=5/3*5/8;9/2-9/11=9/2*9/11;10/7-10/17=10/7*10/17;...所发现的规律用含字母a,b的等式表达
5/3-5/8=5/3*5/8;9/2-9/11=9/2*9/11;10/7-10/17=10/7*10/17;...所发现的规律用含字母a,b的等式表达
5/3-5/8=5/3*5/8;9/2-9/11=9/2*9/11;10/7-10/17=10/7*10/17;...所发现的规律用含字母a,b的等式表达
(b-a)/a-(b-a)/b=(b-a)(b-a)/ab
a/b-a/(a+b)=a/b*a/(a+b)
1+1+1+1++5+5++8+5+6+3+27++8+0+6+6+2+7+8+5+9+9+9+9-9+8+5+5+51+6+5+8+5+95+8+8+9+9+8=
3 5 8 9
1/9+1/5+3/5+4/9+2/3+7/8+1/6+5/7+3/7+5/8+3/5+1/8+2/9=?
3+5+7+8+1+5+5-9×13=
1/9+1/5+3/5+4/9+2/3+7/8+1/6+5/7+3/7+5/8+3/5+1/8=?
8-4/9-5/9X=2/3
1+2+3+4-6+5-8+9-9=
1+2+3+9+5+8+444+3=
1+2+3+4+5+6+7+8+9+1+2+3+4+56+7+8+9+8+5+5+5+5=ss
8÷(-2)²-(-9/5)÷(3/5)²=?8÷(-2)²-(-9/5)÷(3/5)²=2/3 + 3/5 ÷ (-2/5) - 3/4 × (-4/5)=?8÷(-2)²-(-9/5)÷(3/5)²= 2/3 + 3/5 ÷ (-2/5) - 3/4 × (-4/5)=?不小心连一块了。
8-5x=3x+9
3、5、8、9加减乘除=24
3/8+2/5+9/11+1/5+2/7+3/5+1/4+4/9+3/7+2/9+5/8=?
1-5/8x=8/9*3/8
8-(3x+9y)=2 5x+5=8y
2 3 4 5 6 8 9
9/10除以2/5*3/8
2/9×8/5×3/4要竖式