Question

7又4分之3加9又5分之4加6又2分之1等于多少？

Answer 1

7又3/4+9又4/5+6又1/2
=31/4+49/5+13/2
=155/20+196/20+130/20
=（155+196+130）/20
=24.05

Answer 2

7又4分之3化为假分数是31/4
9又5分之4化为假分数是49/5
6又2分之1化为假分数是13/2
31/4+49/5+13/2
＝（31×10）/40+（49×8）/40+（13×2 0）/40
＝310/40+392/40+260/40
＝962/40
＝481/20

Answer 3

7又4分之3加9又5分之4加6又2分之1
=7+3/4+9+4/5+6+1/2
=22+3/4+4/5+1/2
=22+3/4+1/2+4/5
=22+3/4+2/4+4/5
=22+5/4+4/5
=22+25/20+16/20
=22+41/20
=22+2.05
=24.05

Answer 4

=7+3/4+9+4/5+6+1/2
=7+9+6+3/4+1/2+4/5
=22+5/4+4/5
=22+25/20+16/20
=22+41/20
=24又1/20