(1)
24X(6分之5-8分之3)
=24x5/6-24x3/8
=20-9
=11
(2)
6分之11×22×18分之7
=6x2x7/18
=1x2x7/3
=14/3 (3分之14)
(3)
8分之7×49分之3×9分之8
=8分之7×9分之8×49分之3
=9分之7×49分之3
=21分之1
(4)
(5分之2+4分之1)×20
=2/5x20+1/4x20
=8+5
=13
(5)
(12分之7-5分之2)×60
=7/12x60-2/5x60
=35-24
=11
(6)
15分之13×26分之5
=13/15 x 5/26
=1/3 x 1/2
=1/6 (6分之1)