1/5÷(1-1/3×1/2) 9/10×【7/8÷(4/5+1/4)】 (1/4-1/4×1/2)÷1/4 5/6+9/8×5/9×8/9 9
1/5÷(1-1/3×1/2)9/10×【7/8÷(4/5+1/4)】(1/4-1/4×1/2)÷1/45/6+9/8×5/9×8/99×5/6+5/6÷1/9(3/8+...
1/5÷(1-1/3×1/2)
9/10×【7/8÷(4/5+1/4)】
(1/4-1/4×1/2)÷1/4
5/6+9/8×5/9×8/9
9×5/6+5/6÷1/9
(3/8+1/27)×8+19/27 展开
9/10×【7/8÷(4/5+1/4)】
(1/4-1/4×1/2)÷1/4
5/6+9/8×5/9×8/9
9×5/6+5/6÷1/9
(3/8+1/27)×8+19/27 展开
1个回答
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1/5÷(1-1/3×1/2)
=1/5÷(1-1/6)
=1/5÷5/6
=6/25
9/10×【7/8÷(4/5+1/4)】
=9/10×【7/8÷21/20】
=9/10×5/6
=3/4
(1/4-1/4×1/2)÷1/4
=(1/4-1/8)÷1/4
=1/8÷1/4
=1/2
5/6+9/8×5/9×8/9
=5/6+5/9
=25/18
9×5/6+5/6÷1/9
=9×5/6+5/6×9
=(9+9)×5/6
=18×5/6
=15
(3/8+1/27)×8+19/27
=3/8×8+1/27×8+19/27
=3+8/27+19/27
=3+(8/27+19/27)
=3+1
=4
=1/5÷(1-1/6)
=1/5÷5/6
=6/25
9/10×【7/8÷(4/5+1/4)】
=9/10×【7/8÷21/20】
=9/10×5/6
=3/4
(1/4-1/4×1/2)÷1/4
=(1/4-1/8)÷1/4
=1/8÷1/4
=1/2
5/6+9/8×5/9×8/9
=5/6+5/9
=25/18
9×5/6+5/6÷1/9
=9×5/6+5/6×9
=(9+9)×5/6
=18×5/6
=15
(3/8+1/27)×8+19/27
=3/8×8+1/27×8+19/27
=3+8/27+19/27
=3+(8/27+19/27)
=3+1
=4
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