5/16×7/11+5/11×9/16能简便的要简便计算下面过程?
4个回答
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5/16×7/11+5/11×9/16
=(5×7)/(16×11)+(5×9)/(11×16)
=35/(16×11)+45/(16×11)
=(35+45)/(16×11) 分母相同,分子相加
=80/(16×11)
=(16×5)/(16×11) 80转换成16×5
=5/11 分子分母同时约去16
=(5×7)/(16×11)+(5×9)/(11×16)
=35/(16×11)+45/(16×11)
=(35+45)/(16×11) 分母相同,分子相加
=80/(16×11)
=(16×5)/(16×11) 80转换成16×5
=5/11 分子分母同时约去16
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展开全部
5/16×7/11+5/11×9/16
=5/11×7/16+5/11×9/16
=5/11×(7/16+9/16)
=5/11×1
=5/11
=5/11×7/16+5/11×9/16
=5/11×(7/16+9/16)
=5/11×1
=5/11
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展开全部
5/16×7/11
=(5×7)/(16×11)
=5/11×7/16
5/16×7/11+5/11×9/16
=5/11×7/16+5/11×9/16
=5/11×(7/16+9/16)
=5/11×16/16
=5/11×1
=5/11
=(5×7)/(16×11)
=5/11×7/16
5/16×7/11+5/11×9/16
=5/11×7/16+5/11×9/16
=5/11×(7/16+9/16)
=5/11×16/16
=5/11×1
=5/11
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