这道数学题要求我们计算两个分数的和。

This math problem asks us to add two ___fractions together.

我只吃了蛋糕的一小部分。

I only ate a ___fraction of the cake.

玻璃杯掉在地上摔成了碎片。

The glass broke into tiny ___pieces when it fell on the ground.

实验中使用的氢氧化钠溶液浓度为1/10。

The concentration of sodium hydroxide solution used in the experiment is ___a fraction of 1/10.