次の計算をし，ア～ソに当てはまる数を半角英数字で入力しなさい。

1. \( 1.5 +(-9.2) = \fbox{ア} \)
2. \( (-9) +0.7 = \fbox{イ} \)
3. \( 1 -1.3 = \fbox{ウ} \)
4. \( (-0.1) -(-3) = \fbox{エ} \)
5. \(\displaystyle \left( -\frac{3}{4} \right) +\frac{4}{5} = \frac{\fbox{オ}}{\fbox{カ}} \)
6. \(\displaystyle \frac{1}{9} +\left( -1\frac{3}{10} \right) = \fbox{キ} \frac{\fbox{ク}}{\fbox{ケ}} \)
7. \(\displaystyle \left( -1\frac{3}{5} \right) -2\frac{1}{2} = \fbox{コ}\frac{\fbox{サ}}{\fbox{シ}} \)
8. \(\displaystyle \left( -1\frac{4}{15} \right) -2\frac{7}{30} = \fbox{ス}\frac{\fbox{セ}}{\fbox{ソ}} \)