《2025年口算训练六年级数学上册人教版双色升级版》

用最简分数表示商。
$3÷2= $$\frac{3}{2}$
$5÷9= $$\frac{5}{9}$
$1÷7= $$\frac{1}{7}$
$2÷5= $$\frac{2}{5}$
$5÷14= $$\frac{5}{14}$
$8÷3= $$\frac{8}{3}$
$15÷10= $$\frac{3}{2}$
$6÷5= $$\frac{6}{5}$
$7÷9= $$\frac{7}{9}$
$3÷25= $$\frac{3}{25}$
$9÷10= $$\frac{9}{10}$
$4÷25= $$\frac{4}{25}$
$13÷42= $$\frac{13}{42}$
$7÷4= $$\frac{7}{4}$
$16÷13= $$\frac{16}{13}$
$19÷25= $$\frac{19}{25}$
$14÷27= $$\frac{14}{27}$
$18÷36= $$\frac{1}{2}$
$21÷15= $$\frac{7}{5}$
$35÷48= $$\frac{35}{48}$

答案： 分析题目，本题考查除法运算结果用分数表示，并且要化为最简分数。
$3 ÷ 2=\frac{3}{2}$
$5 ÷ 9=\frac{5}{9}$
$1 ÷ 7=\frac{1}{7}$
$2 ÷ 5=\frac{2}{5}$
$5 ÷ 14=\frac{5}{14}$
$8 ÷ 3=\frac{8}{3}$
$15 ÷ 10=\frac{15}{10}=\frac{3}{2}$
$6 ÷ 5=\frac{6}{5}$
$7 ÷ 9=\frac{7}{9}$
$3 ÷ 25=\frac{3}{25}$
$9 ÷ 10=\frac{9}{10}$
$4 ÷ 25=\frac{4}{25}$
$13 ÷ 42=\frac{13}{42}$
$7 ÷ 4=\frac{7}{4}$
$16 ÷ 13=\frac{16}{13}$
$19 ÷ 25=\frac{19}{25}$
$14 ÷ 27=\frac{14}{27}$
$18 ÷ 36=\frac{18}{36}=\frac{1}{2}$
$21 ÷ 15=\frac{21}{15}=\frac{7}{5}$
$35 ÷ 48=\frac{35}{48}$

$5÷\frac {2}{3}= $
$60÷\frac {3}{4}= $
$3.2×\frac {5}{8}= $
$80÷\frac {2}{3}= $
$\frac {6}{7}×21= $
$\frac {6}{7}÷\frac {6}{5}= $
$9÷\frac {3}{7}= $
$81÷\frac {3}{5}= $
$\frac {11}{12}×\frac {36}{33}= $
$4÷\frac {1}{3}= $
$\frac {5}{21}÷\frac {5}{7}= $
$25÷\frac {5}{8}= $
$24×\frac {5}{6}= $

答案： 解析：这些题目都是基础的数学运算题目，主要考察分数的乘除运算。
答案：
$5 ÷ \frac {2}{3} = 5 × \frac{3}{2} = \frac{15}{2}$
$60 ÷ \frac {3}{4} = 60 × \frac{4}{3} = 80$
$3.2 × \frac {5}{8} = \frac{16}{5} × \frac{5}{8} = 2$
$80 ÷ \frac {2}{3} = 80 × \frac{3}{2} = 120$
$\frac {6}{7} × 21 = 18$
$\frac {6}{7} ÷ \frac {6}{5} = \frac {6}{7} × \frac{5}{6} = \frac{5}{7}$
$9 ÷ \frac {3}{7} = 9 × \frac{7}{3} = 21$
$81 ÷ \frac {3}{5} = 81 × \frac{5}{3} = 135$
$\frac {11}{12} × \frac {36}{33} = 1$
$4 ÷ \frac {1}{3} = 4 × 3 = 12$
$\frac {5}{21} ÷ \frac {5}{7} = \frac {5}{21} × \frac {7}{5} = \frac{1}{3}$
$25 ÷ \frac {5}{8} = 25 × \frac{8}{5} = 40$
$24 × \frac {5}{6} = 20$

求比值。
$4:5=$$\frac{4}{5}$
$10:5=$$2$
$7:21=$$\frac{1}{3}$
$6:24=$$\frac{1}{4}$
$10:25=$$\frac{2}{5}$
$48:12=$$4$
$21:14=$$\frac{3}{2}$
$35:15=$$\frac{7}{3}$
$15:12=$$\frac{5}{4}$
$10:30=$$\frac{1}{3}$
$20:4=$$5$
$60:15=$$4$
$12:3=$$4$
$25:15=$$\frac{5}{3}$
$15:7=$$\frac{15}{7}$
$7.2:8=$$0.9$
$0.45:0.9=$$0.5$
$36:16=$$\frac{9}{4}$
$0.72:0.08=$$9$
$110:12.1=$$\frac{1000}{11}$

答案： $4:5=\frac{4}{5}$
$10:5=2$
$7:21=\frac{1}{3}$
$6:24=\frac{1}{4}$
$10:25=\frac{2}{5}$
$48:12=4$
$21:14=\frac{3}{2}$
$35:15=\frac{7}{3}$
$15:12=\frac{5}{4}$
$10:30=\frac{1}{3}$
$20:4=5$
$60:15=4$
$12:3=4$
$25:15=\frac{5}{3}$
$15:7=\frac{15}{7}$
$7.2:8=0.9$
$0.45:0.9=0.5$
$36:16=\frac{9}{4}$
$0.72:0.08=9$
$110:12.1=\frac{1000}{11}$