4/15÷（13/9-2/3×5/6）×5/6
＝4/15÷（13/9-5/9）×5/6
＝4/15÷8/9×5/6
＝4/15×9/8×5/6
＝1/4
4/15÷﹙13/9-2/3×5/6﹚×5/6
4个回答
相关问题
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① 15 16 ÷ 3 8 ÷ 5 6 ② 9 13 ÷ 15 26 × 5 6 ③ 3 5 ÷3+ 1 3 × 4 5
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1 8/13÷7+1/7×6/13 2 2-6/13÷9/29-2/3 3 5/12×（5/6+3/4）+4/5
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5×3= 4×3= 2×9= 7×2= 18÷6= 15÷5 40÷5= 21÷7= 4×4= 8×4= 4×7= 5×
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口算：6-2.4=5.3+3.5=4.7+3.6=20×13=24×30=640÷9=
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6-2 3 5 = 18 9 13 ÷9= 5.6× 4 7 = 1 3 + 1 6 = 8÷ 4 7 = 4 5 ÷0
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算一算． 81÷9= 8×9-27= 45÷5+21= 3×3×6= 4×9÷6= 36÷4÷3= 2×4×5= 63÷
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【（1+2+3+4+5+6）×6】÷9×1.5＝？
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3×(-9)+7×(-9) (5/4-7/6)×(-8/7) (-54)÷6÷(-3) （-54）÷6÷（-3） 2×{
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简便计算(1/6+1/9-1/12)÷4×9和3/20×3.4+5.6×0.15和2.5-(3/5+2.4÷8/3)
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6÷1/4=18×5/6=3/4×3/5=4/9÷8/9=7/6×3/14=