6.脱式计算(1)2/13除15/26乘5/8 (2)2/3除5/8加1/3除5/8(3)(13/2减19/8)除2/1
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6.脱式计算
(1)2/13除15/26乘5/8 (2)2/3除5/8加1/3除5/8
(3)(13/2减19/8)除2/13 (4)32/5除5/2加32/5乘3/5
(5)18/13除9除2/15 (6)15/16除(5/12除5/8加3/8)
(7)(4/5加1/4)除7/3加7/10 (8)(2/3加2/15)乘45
(1)2/13除15/26乘5/8 (2)2/3除5/8加1/3除5/8
(3)(13/2减19/8)除2/13 (4)32/5除5/2加32/5乘3/5
(5)18/13除9除2/15 (6)15/16除(5/12除5/8加3/8)
(7)(4/5加1/4)除7/3加7/10 (8)(2/3加2/15)乘45
2/13÷15/26×5/8
=2/13×26/15×5/8
=4/15×5/8
=1/6
2/3÷5/8+1/3÷5/8
=2/3×8/5+1/3×8/5
=8/5×(2/3+1/3)
=8/5×1
=8/5
(13/2-19/8)÷2/13
=33/8×13/2
=429/16
32/5÷5/2﹢32/5×3/5
=32/5×2/5+32/5×3/5
=32/5×(2/5+3/5)
=32/5×1
=32/5
18/13÷9÷2/15
=18/13×1/9×15/2
=15/13
15/16÷(5/12÷5/8+3/8)
=15/16÷(2/3+3/8)
=15/16×24/25
=9/10
(4/5+1/4)÷7/3+7/10
=21/20×3/7+7/10
=9/20+7/10
=23/20
(2/3+2/15)×45
=12/15×45
=36
=2/13×26/15×5/8
=4/15×5/8
=1/6
2/3÷5/8+1/3÷5/8
=2/3×8/5+1/3×8/5
=8/5×(2/3+1/3)
=8/5×1
=8/5
(13/2-19/8)÷2/13
=33/8×13/2
=429/16
32/5÷5/2﹢32/5×3/5
=32/5×2/5+32/5×3/5
=32/5×(2/5+3/5)
=32/5×1
=32/5
18/13÷9÷2/15
=18/13×1/9×15/2
=15/13
15/16÷(5/12÷5/8+3/8)
=15/16÷(2/3+3/8)
=15/16×24/25
=9/10
(4/5+1/4)÷7/3+7/10
=21/20×3/7+7/10
=9/20+7/10
=23/20
(2/3+2/15)×45
=12/15×45
=36
6.脱式计算(1)2/13除15/26乘5/8 (2)2/3除5/8加1/3除5/8(3)(13/2减19/8)除2/1
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