通过简单的操作。点击看详细①,24×{4分之1 + 1-3 1/6每1}点击看详细= 24×4 + 24×1/6 - 24×1/3,点击看详细= 6 + 4-8点击看详细= 2,点击看详细②,1 + 0.45÷0.9-8元7,点击看详细= 1 + 0.5-7 / 8,点击看详细= 5/8,点击看详细③,8分之3×17 17分之5元5×62.5%,点击看详细= 5/17×(3/8 + 62.5%),点击看详细= 5/17×1
= 5/17点击看详细④,9分之4×16 {3- [4-每7-4点每1}]
= 4 / 9×[3 / 4-7 / 16 + 1/4]点击看详细= 4/9×[3/4 + 1 / 4-7 / 16]
BR> = 4/9×9/16,点击看详细= 1/4
中国的X 25%X = 8分之3,点击看详细(1-25%)×= 3/8,点击看详细3/4倍= 3/8
X = 3 / 8÷3/4,点击看详细X = 1/2