Question

1/15÷3 1/4+8/13×4/15+4/13÷3 3/4写清楚步骤,

Answer 1

1/15÷3 1/4+8/13×4/15+4/13÷3 3/4

=1/15÷13/4+8/13×4/15+4/13÷15/4

=1/15×4/13+4/13×8/15+4/13×4/15

=4/13×(1/15+8/15+4/15)

=4/13×13/15

=4/15