9.化简比,并求出比值.
$\frac{3}{4}$:$\frac{1}{12}$ | 2.1:2.7 | $\frac{9}{8}$:37.5% | 15分:$\frac{1}{12}$时 |
8.直接写出得数.
15%+20%= | 1-30%= | 30×10%= | 55÷20%= | $\frac{2}{3}$÷$\frac{5}{6}$= |
3×3.14= | $\frac{7}{8}$÷35= | $\frac{3}{4}$-$\frac{1}{6}$= | 62.8÷3.14= | $\frac{1}{4}$÷25%= |
7.在含糖率为10%的糖水中,糖与水的质量比是( )
0 164611 164619 164625 164629 164635 164637 164641 164647 164649 164655 164661 164665 164667 164671 164677 164679 164685 164689 164691 164695 164697 164701 164703 164705 164706 164707 164709 164710 164711 164713 164715 164719 164721 164725 164727 164731 164737 164739 164745 164749 164751 164755 164761 164767 164769 164775 164779 164781 164787 164791 164797 164805 199269
A. | 1:10 | B. | 1:11 | C. | 1:9 |