题目
一、口算题(共20道)(5)/(13)+(17)/(13)= (5)/(16)+(3)/(16)= (7)/(15)+(1)/(10)= (25)/(19)-(6)/(19)= (7)/(8)-(1)/(6)=(15)/(44)+(5)/(22)= (1)/(5)+(3)/(10)= (13)/(96)+(13)/(24)= (3)/(8)+(2)/(13)= (11)/(23)+(11)/(92)=
一、口算题(共20道)
$\frac{5}{13}+\frac{17}{13}=$ $\frac{5}{16}+\frac{3}{16}=$ $\frac{7}{15}+\frac{1}{10}=$ $\frac{25}{19}-\frac{6}{19}=$ $\frac{7}{8}-\frac{1}{6}=$
$\frac{15}{44}+\frac{5}{22}=$ $\frac{1}{5}+\frac{3}{10}=$ $\frac{13}{96}+\frac{13}{24}=$ $\frac{3}{8}+\frac{2}{13}=$ $\frac{11}{23}+\frac{11}{92}=$
题目解答
答案
1. $\frac{5}{13} + \frac{17}{13} = \frac{22}{13}$
2. $\frac{5}{16} + \frac{3}{16} = \frac{1}{2}$
...
20. $\frac{3}{10} + \frac{1}{4} = \frac{11}{20}$
\[
\boxed{
\begin{array}{cccc}
\frac{22}{13} & \frac{1}{2} & \frac{17}{30} & 1 \\
\frac{17}{24} & \frac{25}{44} & \frac{1}{2} & \frac{65}{96} \\
\frac{55}{104} & \frac{55}{92} & \frac{1}{3} & \frac{7}{12} \\
\frac{13}{18} & \frac{1}{3} & \frac{13}{42} & \frac{11}{24} \\
\frac{7}{10} & \frac{4}{9} & \frac{17}{24} & \frac{11}{20} \\
\end{array}
}
\]