脱式计算.(怎么简便就怎么算.)① 5 6
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(1)5/6−(1/3+1/4 ),
=5/6-7/12
=1/4
(2)3/8-3/10×5/6
=3/8-1/4
=1/8
(3)4÷8/3-3/5
=4×3/8-3/5
=3/2-3/5
=9/10
(4)3/8÷1/10×3/5
=3/8×10×3/5
=15/4×3/5
=9/4
(5)24×(1/4+1/6-1/3)
=24×1/4+24×1/6-24×1/3
=6+4-8
=2
(6)4/5×7/9+1/5×7/9
=(4/5+1/5)×7/9
=1×7/9
=7/9
=5/6-7/12
=1/4
(2)3/8-3/10×5/6
=3/8-1/4
=1/8
(3)4÷8/3-3/5
=4×3/8-3/5
=3/2-3/5
=9/10
(4)3/8÷1/10×3/5
=3/8×10×3/5
=15/4×3/5
=9/4
(5)24×(1/4+1/6-1/3)
=24×1/4+24×1/6-24×1/3
=6+4-8
=2
(6)4/5×7/9+1/5×7/9
=(4/5+1/5)×7/9
=1×7/9
=7/9
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