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7/6×9/4+7/4×9/1用简便计算怎么算

解:根据提取公因式的简便方法, 原式=4/7x6/9+4/7x1/9 =4/7x(6/9+1/9) =4/7x7/9 =4/9

解:根据提取公因式的简便方法, 原式=4/7x6/9+4/7x1/9 =4/7x(6/9+1/9) =4/7x7/9 =4/9

6/7×4/9+4/7×1/9 =(4×6)/(7×9)+(4×1)/(7×9) =(4×6+4×1)/(7×9) =(4×7)/(7×9) =4/9

分数表示的方法为9分之1表示为1/9,“/”为分数线,前面的数字为分子,后面的数字为分母 则原题式子为: 6/7×4/9+4/7×1/9 =4/7×6/9+4/7×1/9 =4/7×(6/9+1/9) =4/7×7/9 =4/9

用简便方法计算 7/9×12+6×4/9 =7/9×12+12×2/9 =(7/9+2/9)×12 =1×12 =12

先用7/9加4/9(11/9),然后与1/6通分

题目不完整

7.6乘以7.3加上1.9乘以4乘以7.3 7.6×7.3+1.9×4×7.3=7.6×7.3+7.6×7.3=7.3×7.6×2=110.96

7.6乘1.9减96.2除以7.4 =7.6x(2-0.1)-13 =7.6x2-13-7.6x0.1 =15.2-13-0.76 =2.2-0.76 =1.44

7/9-(5/9+1/6)简便运算 =7/9-5/9+1/6 =2/9+1/6 =4/18+3/18 =7/18

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