3/2除以1/4乘以4/15除以168/9除以（1/4+5/6乘以3/5）=3/2除以1/4乘以4/15除以168/9除以（1/4+5/6乘以3/5）===

Question

3/2除以1/4乘以4/15除以16 8/9除以（1/4+5/6乘以3/5） =
3/2除以1/4乘以4/15除以16 8/9除以（1/4+5/6乘以3/5）
= =
=


8除以[（2/3-1/5）乘以3/14]
（1/3+1/4-1/6）乘以24 =
=
=5/38除以15/19+3/4乘以5/6 5/6-5/14除以20/21-1/8
=

Answer 1

【1】 3/2 ÷ 1/4 × 4/15 ÷16
=（ 3/2 × 4/15 ）÷ （ 1/4 × 16）
= 2/5 ÷4
= 1/10
【2】8/9 ÷（ 1/4 + 5/6 × 3/5 ）
= 8/9 ÷ （ 1/4 + 1/2 ）
= 8/9 × 4/3
= 32/27
【3】8÷ [（ 2/3 - 1/5 ）× 3/14]
=8÷ [ 2/3 × 3/4 - 1/5 × 3/14 ]
=8÷ [ 1/2 - 15/70 ]
=8÷ 2/7
=28
【4】（ 1/3 + 1/4 - 1/6 ）×24
= 1/3 × 24+ 1/4 × 24 - 1/6 × 24
= 8+6-4
=10
【5】5/38 ÷ 15/19 + 3/4 × 5/6
= 5/38 × 19/15 + 3/4 × 5/6【约分】
= 1/6 + 5/8
= 19/24
【6】5/6 - 5/14 ÷ 20/21 - 1/8
= 5/6 - 5/14 × 21/20 - 1/8
= 5/6 - 3/8 - 1/8
= 5/6 -（ 3/8 + 1/8 ）
= 5/6 - 1/2
= 1/3
希望能帮助到你^_^