Question

2/3÷[(3/7-3/10)*10]简便计算列出过程

还有35/26÷7*4/25÷3/5、
11/21*1/8+10/21÷8

Answer 1

答：=2/3÷[(30/70-21/70)*10]
=2/3÷[(9/70)*10]
=2/3÷9/7
=2/3*7/9
=14/27

Answer 2

2/3÷[3/7x10--3/10x10]
=2/3÷[30/7---3]
=2/3÷9/7
=2/3x7/9
=6/7
35/26÷7*4/25÷3/5

=35/26x1/7x4/25x5/3
=2/39
11/21*1/8+10/21÷8

=11/21*1/8+10/21*1/8
=1/8*（11/21+10/21）
=1/8