
(1又3/4x5/7÷1又3/4x2/7)÷0.375等于多少?
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解:(1又3/4x5/7÷1又3/4x2/7)÷0.375等于( 80/147 )
∵已知需求出(1又3/4x5/7÷1又3/4x2/7)÷0.375等于多少
∴(1又3/4x5/7÷1又3/4x2/7)÷0.375
= [(1×4+3)/4 × 5/7 ÷ (1×4+3)/4 × 2/7] ÷ 375/1000
= (7/4 × 5/7 ÷ 7/4 × 2/7)÷ 3/8
= (7/4 × 5/7 × 4/7 × 2/7)× 8/3
= (7/4 × 4/7 × 5/7 × 2/7)× 8/3
= (1 × 5/7 × 2/7)× 8/3
= (5/7 × 2/7)× 8/3
= 10/49 × 8/3
= 80/147
答:(1又3/4x5/7÷1又3/4x2/7)÷0.375等于80/147
∵已知需求出(1又3/4x5/7÷1又3/4x2/7)÷0.375等于多少
∴(1又3/4x5/7÷1又3/4x2/7)÷0.375
= [(1×4+3)/4 × 5/7 ÷ (1×4+3)/4 × 2/7] ÷ 375/1000
= (7/4 × 5/7 ÷ 7/4 × 2/7)÷ 3/8
= (7/4 × 5/7 × 4/7 × 2/7)× 8/3
= (7/4 × 4/7 × 5/7 × 2/7)× 8/3
= (1 × 5/7 × 2/7)× 8/3
= (5/7 × 2/7)× 8/3
= 10/49 × 8/3
= 80/147
答:(1又3/4x5/7÷1又3/4x2/7)÷0.375等于80/147
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