0.75*3/8+1/4除以3/8等于几?

0.75×3/8+1/4÷3/8
=3/4×3/8+1/4×8/3
=9/32+2/3
=27/96+64/96
=91/96
如果是：0.75×8/3+1/4÷3/8
=3/4×8/3+1/4×8/3
=(3/4+1/4)×8/3
=8/3
如果是：0.75×3/8+1/4÷8/3
=3/4×3/8+1/4×3/8
=(3/4+1/4)×3/8
=3/8