8/51x109-7/51x851分之8乘以109-51分之7乘以8简便运算

题目详情

8/51x109-7/51x8
51分之8乘以109-51分之7乘以8 简便运算

▼优质解答

答案和解析

8/51x109-7/51x8
=8/51x109-8/51x7
=8/51x(109-7)
=8/51x102
=16

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