Question

1/15/3.25+8/13*4/15+4/13/3.75请用简便方法计算。

Answer 1

1/15÷3.25+8/13×4/15+4/13÷3.75

=1/15÷(13/4)+8/13×4/15+4/13÷(15/4)

=1/15×(4/13)+8/13×4/15+4/13×(4/15)

=1/15×(1/13)×(1×4+8×4+4×4)

=1/15×(1/13)×4×(1+8+4)

=4/15