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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

根据乘法分配率6×7=6×3+6×4 6×9=6×4+6×5或6×7+6×2或6×1+6×8或6×3+6×6 6×6+6=6×7

=9.6.-11/7+4/7=9.6-7/7=9.6-1=8.6

5/6×4/9÷10/3+7/3 =10/27×3/10+7/3 =1/9+7/3 =1/9+21/9 =22/9

您好: (6/5+9/11+1又5/7)/(3/11+2/5+4/7) = (9/11+6/5+12/7)/(3/11+2/5+4/7) =3x(3/11+2/5+4/7)/(3/11+2/5+4/7) =3 ~如果你认可我的回答,请及时点击【采纳为满意回答】按钮~ ~手机提问者在客户端右上角评价点【满意】即可。 ~你的采纳是我前进...

4/9÷(5/6-1/2)×(7/8-1/2)4/9÷(5/6-1/2)×(7/8-1/2)=4/9÷(5/6-3/6)×(7/8-4/8)=4/9÷(2/6)×(3/8)=4/9÷(1/3)×(3/8)=4/9×3×(3/8)=4/9×9/8=4/8=1/2

=6/7 * 4/5 * 14 * 3 * 20 *(1/4-1/5)(4/5+9/10)=6/7 *4/5 *14 *3 * 1/20 *17/10=6/7* 14 *3*1/20*17/10=3.06

(1)9.6-11÷7+17×4=9.6-117+47=9.6-(117-47)=9.6-1=8.6;(2)318×7.4-318+3.6×3.125=3.125×7.4-3.125+3.6×3.125=3.125×(7.4-1+3.6)=3.125×10=31.25.

7/8×6/7×4/9 =6/8X4/9 =3/4X4/9 =1/3

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