2.递等式计算(能简算的要简算)
$\frac{7}{9}$×$\frac{6}{7}$÷$\frac{6}{7}$×$\frac{7}{9}$ | [9-(1.75+$\frac{7}{12}$)]÷($\frac{2}{3}$÷2$\frac{2}{3}$) |
0.23×2$\frac{4}{7}$+0.23+7$\frac{3}{7}$×$\frac{23}{100}$ | [1.1+7÷(3$\frac{1}{12}$-1$\frac{5}{8}$)]×1$\frac{1}{59}$ |
$\frac{1}{15}$×14.625+5$\frac{3}{8}$÷15 | ($\frac{5}{6}$+$\frac{7}{8}$-$\frac{5}{12}$)÷$\frac{1}{48}$ |
[9-($\frac{1}{12}$+0.125)×24]÷1.6 | 6$\frac{3}{5}$-4$\frac{4}{5}$×1$\frac{1}{9}$÷48 |
1.直接写出得数.
$\frac{4}{5}$÷$\frac{3}{5}$ | 1÷$\frac{3}{7}$ | $\frac{3}{5}$-$\frac{1}{2}$ | 100÷10% | $\frac{2}{25}$×1.25 |
1÷7×$\frac{1}{7}$ | $\frac{4}{5}$×0.5 | 0.25÷$\frac{1}{8}$ | 1$\frac{2}{3}$+$\frac{1}{3}$×1$\frac{1}{3}$ | 18$\frac{6}{7}$÷6 |
20.$\frac{7}{8}$×a=$\frac{6}{7}$×b,那么a与b比较( )
0 160713 160721 160727 160731 160737 160739 160743 160749 160751 160757 160763 160767 160769 160773 160779 160781 160787 160791 160793 160797 160799 160803 160805 160807 160808 160809 160811 160812 160813 160815 160817 160821 160823 160827 160829 160833 160839 160841 160847 160851 160853 160857 160863 160869 160871 160877 160881 160883 160889 160893 160899 160907 199269
A. | a>b | B. | a<b | C. | a=b |