Question

八分之五乘二分之一加二分之一乘八分之九加二分之一乘八分之三。简便计算？

Answer 1

原式是5/8×1/2+1/2×9/8+1/2×3/8，所以运用乘法分配律逆运算就是1/2×（5/8+9/8+3/8）=1/2×17/8=17/16

Answer 2

可以利用乘法分配律来进行计算，5/8*1/2+9/8*1/2+3/8*1/2=1/2*（5/8+9/8+3/8）=1/2*17/8=17/16

Answer 3

5/8×1/2+1/2×9/8+1/2×3/8
=1/2×(5/8+9/8+3/8)
=1/2×17/8
=(1×17)/(2×8)
=17/16

Answer 4

5/8x1/2+1/2x9/8+1/2x3/8
=1/2x(5/8+9/8+3/8)
=1/2x5+9+3/8
=1/2x17/8
=17/16

Answer 5

5/8×1/2+1/2×9/8+1/2×3/8
=1/2×（5/8+9/8+3/8）
=1/2×17/8
=17/16