30x(1/5+1/3) 2/3x5/7+2/3x2/7 5/6除以3+1/6x1/3 0除以5/9+5/6x430x(1/5+1/3) 2/3x5/7+2/3x2/7 5/6除以3+1/6x1/3 0除以5/9+5/6x4用简便运算

来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/16 11:53:53
30x(1/5+1/3)2/3x5/7+2/3x2/75/6除以3+1/6x1/30除以5/9+5/6x430x(1/5+1/3)2/3x5/7+2/3x2/75/6除以3+1/6x1/30除以5/9

30x(1/5+1/3) 2/3x5/7+2/3x2/7 5/6除以3+1/6x1/3 0除以5/9+5/6x430x(1/5+1/3) 2/3x5/7+2/3x2/7 5/6除以3+1/6x1/3 0除以5/9+5/6x4用简便运算
30x(1/5+1/3) 2/3x5/7+2/3x2/7 5/6除以3+1/6x1/3 0除以5/9+5/6x4
30x(1/5+1/3) 2/3x5/7+2/3x2/7 5/6除以3+1/6x1/3 0除以5/9+5/6x4用简便运算

30x(1/5+1/3) 2/3x5/7+2/3x2/7 5/6除以3+1/6x1/3 0除以5/9+5/6x430x(1/5+1/3) 2/3x5/7+2/3x2/7 5/6除以3+1/6x1/3 0除以5/9+5/6x4用简便运算
6+10=16 2/3(5/7+2/7)=2/3×1=2/3