数学1入門1-3想定問題3

2. 分数の加減算

$$
\frac{1}{5} + \frac{3}{5} = \\
\frac{3}{7} – \frac{2}{7} = \\
\frac{3}{8}+\frac{1}{8} = \\
\frac{1}{6} +\frac{3}{4} = \\
\frac{2}{5} – \frac{1}{10} = \\
\frac{1}{2} + \frac{1}{3} -\frac{1}{6} = \\
$$