2021-10-01
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解:
(2/9x3/4+1/4x2/9)x9/92
=2/9x(3/4+1/4)x9/92
=2/9x1x9/92
=(2x9)/(9x92)
=2/92
=1/46
(2/9x3/4+1/4x2/9)x9/92
=2/9x(3/4+1/4)x9/92
=2/9x1x9/92
=(2x9)/(9x92)
=2/92
=1/46
展开全部
解:(2/9Ⅹ3/4十1/4X2/9)X9/92
=2/9X(3/4十1/4)X9/92
=2/9X1ⅹ9/92
=2/9X9/92
=1/46
=2/9X(3/4十1/4)X9/92
=2/9X1ⅹ9/92
=2/9X9/92
=1/46
展开全部
解:(2/9x3/4+1/4x2/9)x9/92
=2/9(3/4+1/4)x9/92
=2/9x1x9/92
=2/9x9/92
=2/92
=1/46
=2/9(3/4+1/4)x9/92
=2/9x1x9/92
=2/9x9/92
=2/92
=1/46
展开全部
那就是
=2/9×(3/4+1/4)×9/2
=1×1
=1
=2/9×(3/4+1/4)×9/2
=1×1
=1
展开全部
(2/9x3/4+1/4x2/9)x9/92简便运算?
(2/9x3/4+1/4x2/9)x9/92
=2/9(3/4+1/4)x9/92
=2/9x1x9/92
=2/9x9/92
=2/92
=1/46
(2/9x3/4+1/4x2/9)x9/92
=2/9(3/4+1/4)x9/92
=2/9x1x9/92
=2/9x9/92
=2/92
=1/46
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