《2025年鼎尖同步练习六年级数学上册人教版》

$\frac{2}{3} × \frac{4}{5} = $ $12 × \frac{3}{4} = $ $0.2 × \frac{5}{6} = $ $\frac{3}{2} × \frac{4}{9} = $
$6.4 × \frac{5}{8} = $ $\frac{2}{15} × 10 = $ $\frac{2}{3} × \frac{5}{2} = $ $\frac{5}{6} × 30 = $
$\frac{3}{10} × \frac{5}{6} = $ $0.25 × \frac{8}{5} = $ $\frac{2}{7} × 0.14 = $ $2.2 × \frac{9}{11} = $
$3 × \frac{3}{2} = $ $\frac{1}{3} × \frac{7}{4} = $ $\frac{15}{7} × \frac{1}{5} = $ $3.6 × \frac{7}{3} = $
$\frac{1}{5} × \frac{1}{2} = $ $\frac{2}{3} × \frac{6}{7} = $ $\frac{5}{8} × \frac{1}{10} = $ $\frac{1}{4} × \frac{2}{3} = $
$0.5 × \frac{7}{25} = $ $\frac{3}{4} × 0.12 = $ $\frac{7}{12} × 0.36 = $ $2.4 × \frac{5}{6} = $

答案： $\frac{8}{15}$ 9 $\frac{1}{6}$ $\frac{2}{3}$ 4 $\frac{4}{3}$ $\frac{5}{3}$ 25 $\frac{1}{4}$ 0.4 0.04 1.8 $\frac{9}{2}$ $\frac{7}{12}$ $\frac{3}{7}$ 8.4 $\frac{1}{10}$ $\frac{4}{7}$ $\frac{1}{16}$ $\frac{1}{6}$ $\frac{7}{50}$ 0.09 0.21 2

脱式计算,能简算的要简算。
$(\frac{3}{4} + \frac{1}{6}) × \frac{2}{3}$ $25 × \frac{1}{5} - 5 × \frac{1}{5}$ $(\frac{1}{4} - \frac{1}{7}) × 28$
$\frac{7}{3} × \frac{5}{13} × \frac{3}{14}$ $(\frac{1}{7} + \frac{4}{9}) × 7 × 9$ $\frac{1}{5} × 27 + \frac{3}{5} × 41$

答案： $\frac{11}{18}$ 4 3 $\frac{5}{26}$ 37 30