简便计算 4分之1×4分之1+4分之3×4分之1
问题描述:
简便计算 4分之1×4分之1+4分之3×4分之1
答
=16分之1+16分之3
=16分之4
=4分之1
答
用分配律:(1/4)*(1/4)+(3/4)*(1/4)=(1/4+3/4)*(1/4)=1*(1/4)=1/4。
答
1/4 × 1/4 + 3/4 × 1/4
=1/4 ×(1/4 + 3/4)
=1/4 × 1
=1/4
答
=4分之1