25分之9X27分之7X50
=9/25x50x7/27
=18x7/27
=14/3
13分之11X(5分之4X33分之26)
=11/13x26/33x4/5
=2/3x4/5
=8/15
8分之5X2分之1+3分之1X8分之5-8分之5X6分之1
=5/8x(1/2+1/3-1/6)
=5/8x2/3
=5/12
25分之9X27分之7X50
=9/25x50x7/27
=18x7/27
=14/3
13分之11X(5分之4X33分之26)
=11/13x26/33x4/5
=2/3x4/5
=8/15
8分之5X2分之1+3分之1X8分之5-8分之5X6分之1
=5/8x(1/2+1/3-1/6)
=5/8x2/3
=5/12