(8/17+8/13)×13/8×17/8简便运算

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(8/17+8/13)×13/8×17/8简便运算

(8/17+8/13)×13/8×17/8简便运算
(8/17+8/13)×13/8×17/8简便运算

(8/17+8/13)×13/8×17/8简便运算
(8/17+8/13)×13/8×17/8
=8/17×13/8×17/8+8/13×13/8×17/8
=13/8+17/8
=30/8
=15/4
=3.75

(8/17+8/13)×13/8×17/8
=8/17×13/8×17/8+8/13×13/8×17/8
=13/8+17/8
=20/8=5/2

(8/17+8/13)×13/8×17/8
=8/17×13/8×17/8+8/13×13/8×17/8
=13/17×17/8+1×17/8
=13/8+17/8
=30/8
=15/4