60×（3/4-2/3+2/5）=

60×（3/4 -2/3 +2/5）5?)\/I4\;X*j-U6r'k*F0z4g6L)E

算式：提示6x.y6]1z0D*F;I5?)\/I4\;X*j-U6r'k*F0z4g6L)E

=2h0D(`0~9f'I/|6B+G.K:[0G9q5?)\/I4\;X*j-U6r'k*F0z4g6L)E