(12分之7-8分之3)×24-9分之5
=7/12*24-3/8*24-5/9
=14-9-5/9
=4又4/9
32分之9÷【4分之3-(16分之7-4分之1)】
=9/32/(3/4-3/16)
=9/32*16/9
=1/2
14分之9÷(6分之5-4分之3)×24分之7
=9/14*12*7/24
=9/4
=2又1/4
16分之5×7分之4+1÷5分之16+7分之3×16分之5
=5/16*4/7+1*5/16+3/7*5/16
=5/16*(4/7+1+3/7)
=5/16*2
=5/8
(12分之7-8分之3)×24-9分之5
=(14-9)-5/9
=5-5/9
=4又9分之4
32分之9÷【4分之3-(16分之7-4分之1)】
=9/32÷(3/4-7/16+1/4)
=9/32÷(1-7/16)
=9/32×16/9
=1/2
14分之9÷(6分之5-4分之3)×24分之7
=9/14÷(10/12-9/12)×7/24
=9/14×12×7/24
=9/4
16分之5×7分之4+1÷5分之16+7分之3×16分之5
=5/16×(4/7+1+3/7)
=5/16×2
=5/8
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