《2025年口算训练六年级数学上册人教版双色升级版》

$\frac {3}{7}+\frac {4}{7}= $
$\frac {7}{5}+\frac {2}{5}= $
$\frac {5}{18}+\frac {7}{18}= $
$\frac {2}{9}+\frac {2}{9}= $
$\frac {3}{16}+\frac {3}{16}= $
$\frac {7}{9}+\frac {2}{9}= $
$\frac {7}{8}+\frac {5}{8}= $
$\frac {4}{11}+\frac {4}{11}= $
$\frac {7}{15}+\frac {7}{15}= $
$\frac {3}{26}+\frac {3}{26}= $
$\frac {7}{12}+\frac {7}{12}= $
$\frac {11}{21}+\frac {5}{21}= $
$\frac {3}{17}+\frac {9}{17}= $

答案： 解析：这些题目都是同分母分数相加，根据同分母分数加法法则，分母不变，分子相加即可。
答案：
$\frac {3}{7}+\frac {4}{7}= \frac{3+4}{7} = 1$
$\frac {7}{5}+\frac {2}{5}= \frac{7+2}{5} = \frac{9}{5}$
$\frac {5}{18}+\frac {7}{18}= \frac{5+7}{18} = \frac{2}{3}$
$\frac {2}{9}+\frac {2}{9}= \frac{2+2}{9} = \frac{4}{9}$
$\frac {3}{16}+\frac {3}{16}= \frac{3+3}{16} = \frac{3}{8}$
$\frac {7}{9}+\frac {2}{9}= \frac{7+2}{9} = 1$
$\frac {7}{8}+\frac {5}{8}= \frac{7+5}{8} = \frac{3}{2}$
$\frac {4}{11}+\frac {4}{11}= \frac{4+4}{11} = \frac{8}{11}$
$\frac {7}{15}+\frac {7}{15}= \frac{7+7}{15} = \frac{14}{15}$
$\frac {3}{26}+\frac {3}{26}= \frac{3+3}{26} = \frac{3}{13}$
$\frac {7}{12}+\frac {7}{12}= \frac{7+7}{12} = \frac{7}{6}$
$\frac {11}{21}+\frac {5}{21}= \frac{11+5}{21} = \frac{16}{21}$
$\frac {3}{17}+\frac {9}{17}= \frac{3+9}{17} = \frac{12}{17}$

$\frac {1}{3}+\frac {1}{3}= $
$\frac {5}{8}+\frac {5}{8}+\frac {5}{8}= $
$\frac {1}{6}+\frac {1}{6}+\frac {1}{6}+\frac {1}{6}= $
$\frac {2}{7}+\frac {2}{7}+\frac {2}{7}= $
$\frac {1}{4}+\frac {1}{4}+\frac {1}{4}= $
$\frac {3}{8}+\frac {3}{8}+\frac {3}{8}+\frac {3}{8}= $
$\frac {3}{5}+\frac {3}{5}+\frac {3}{5}+\frac {3}{5}= $
$\frac {9}{11}+\frac {9}{11}+\frac {9}{11}+\frac {9}{11}= $
$\frac {7}{25}+\frac {7}{25}+\frac {7}{25}= $
$\frac {17}{20}+\frac {17}{20}+\frac {17}{20}= $
$\frac {5}{7}+\frac {5}{7}+\frac {5}{7}+\frac {5}{7}= $
$\frac {4}{13}+\frac {4}{13}+\frac {4}{13}= $
$\frac {7}{22}+\frac {7}{22}+\frac {7}{22}+\frac {7}{22}= $

答案： 解析：
这些题目都是基础的分数加法运算，考查同分母分数相加的能力。同分母分数相加时，分母保持不变，只需将分子相加即可。
答案：
$\frac {1}{3}+\frac {1}{3}=\frac {2}{3}$
$\frac {5}{8}+\frac {5}{8}+\frac {5}{8}=\frac {15}{8}$
$\frac {1}{6}+\frac {1}{6}+\frac {1}{6}+\frac {1}{6}=\frac {4}{6}=\frac {2}{3}$
$\frac {2}{7}+\frac {2}{7}+\frac {2}{7}=\frac {6}{7}$
$\frac {1}{4}+\frac {1}{4}+\frac {1}{4}=\frac {3}{4}$
$\frac {3}{8}+\frac {3}{8}+\frac {3}{8}+\frac {3}{8}=\frac {12}{8}=\frac {3}{2}$
$\frac {3}{5}+\frac {3}{5}+\frac {3}{5}+\frac {3}{5}=\frac {12}{5}$
$\frac {9}{11}+\frac {9}{11}+\frac {9}{11}+\frac {9}{11}=\frac {36}{11}$
$\frac {7}{25}+\frac {7}{25}+\frac {7}{25}=\frac {21}{25}$
$\frac {17}{20}+\frac {17}{20}+\frac {17}{20}=\frac {51}{20}$
$\frac {5}{7}+\frac {5}{7}+\frac {5}{7}+\frac {5}{7}=\frac {20}{7}$
$\frac {4}{13}+\frac {4}{13}+\frac {4}{13}=\frac {12}{13}$
$\frac {7}{22}+\frac {7}{22}+\frac {7}{22}+\frac {7}{22}=\frac {28}{22}=\frac {14}{11}$

$\frac {1}{3}×6=$2
$\frac {1}{4}×5=$$\frac{5}{4}$
$\frac {1}{2}×5=$$\frac{5}{2}$
$\frac {1}{5}×6=$$\frac{6}{5}$
$\frac {3}{5}×3=$$\frac{9}{5}$
$\frac {5}{7}×3=$$\frac{15}{7}$
$\frac {7}{8}×2=$$\frac{7}{4}$
$\frac {1}{6}×4=$$\frac{2}{3}$
$\frac {9}{11}×2=$$\frac{18}{11}$
$\frac {8}{15}×2=$$\frac{16}{15}$
$\frac {1}{8}×4=$$\frac{1}{2}$
$\frac {5}{6}×3=$$\frac{5}{2}$
$\frac {5}{12}×6=$$\frac{5}{2}$
第2片

答案： 解析：这些题目都是分数与整数的乘法运算。根据乘法运算法则，分数与整数相乘时，用分数的分子与整数相乘的积做分子，分母不变。若分子与分母有公因数，则可以先进行约分，再计算。
答案：
$\frac{1}{3} × 6 = 2$
$\frac{1}{4} × 5 = \frac{5}{4}$
$\frac{1}{2} × 5 = \frac{5}{2}$
$\frac{1}{5} × 6 = \frac{6}{5}$
$\frac{3}{5} × 3 = \frac{9}{5}$
$\frac{5}{7} × 3 = \frac{15}{7}$
$\frac{7}{8} × 2 = \frac{7}{4}$
$\frac{1}{6} × 4 = \frac{2}{3}$
$\frac{9}{11} × 2 = \frac{18}{11}$
$\frac{8}{15} × 2 = \frac{16}{15}$
$\frac{1}{8} × 4 = \frac{1}{2}$
$\frac{5}{6} × 3 = \frac{5}{2}$
$\frac{5}{12} × 6 = \frac{5}{2}$