48÷ 3/8- 2.43d2T2F3`/F*N7b
算式：提示2Y*o,X9d:S;l3d2T2F3`/F*N7b
=-T9K0R)_+A7W:V:I2\2v*?3W-E4]/j3d2T2F3`/F*N7b