计算:8/17×7/10+7/10×9/17+3/10=?0.84×【7/10×(1/2×7/2)】

来源:学生作业帮助网 编辑:作业帮 时间:2024/07/03 12:42:11
计算:8/17×7/10+7/10×9/17+3/10=?0.84×【7/10×(1/2×7/2)】
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计算:8/17×7/10+7/10×9/17+3/10=?0.84×【7/10×(1/2×7/2)】
计算:8/17×7/10+7/10×9/17+3/10=?0.84×【7/10×(1/2×7/2)】

计算:8/17×7/10+7/10×9/17+3/10=?0.84×【7/10×(1/2×7/2)】
8/17×7/10+7/10×9/17+3/10
=(8/17+9/17)×7/10+3/10
=1×7/10+3/10
=7/10+3/10
=1
0.84÷【7/10×(1/2×7/2)】
=0.84÷【7/10×7/4】
=84/100÷49/40
=21/25×10/49
=3/5×2/7
=6/35

=56/170+63/170+51/170=1

1,35分之6

8/17×7/10+7/10×9/17+3/10
=(8/17+9/17)×7/10+3/10
=1×7/10+3/10
=7/10+3/10
=1
0.84÷【7/10×(1/2×7/2)】
=0.84÷【7/10×7/4】
=84/100÷49/40
=21/25×10/49
=3/5×2/7
=6/35