14.75-（5又4分之3-1又12分之1）
=14.75-[(5+3/4)-(1+1/12)]
=14.75-5.75+1+1/12
=9+1+1/12
=10+1/12
=10又12分之1
5.48-0.75+4又二十五分之十三-2又4分之1
=5.48-0.75+(4+13/25)-(2+1/4)
=5.48-0.75+4.52-2.25
=(5.48+4.52)-(0.75+2.25)
=10-3
=7
19又6分之5-（5.875-1又12分之11）+2又24分之5
=(19+5/6)-[(5+7/8)-(1+11/12)]+(2+5/24)
=19+5/6-5-7/8+1+11/12+2+5/24
=(19-5+1+2)+(-21/24+20/24+22/24+5/24)
=22+26/24
=23+1/12
=23又12分之1