约分的.英文：
reduce a fraction to its lowest terms
reduction of fraction
参考例句：
To remove(a common factor)from the numerator and denominator of a fractional expression.
约分从一个分数表达式的分子和分母去掉(一个公因子)
Exactly divisible by the same unit an integral number of of two quantities.
可通分约分的可被相同整数倍单位分割的。
用于两个量reduce是什么意思：
v. 缩减，减小；简化；将…还原；节食；降职
be reduced to (a) pulp
变成浆状,成纸浆 [软块]
They held a sale to reduce their inventory.
他们降价出售库存货物。
To reduce in rank;demote.
使降职，使…降级 fraction是什么意思：
n. 小部分，少量，一点儿；分数，小数
Could you move a fraction closer?
你能不能稍微再挪近点儿？
In this case the fractional part is discarded.
在此情况下小数部分被丢掉了。
You do fractions, then you do decimals.
你先学习分数，然后，学习小数。
its是什么意思：
pron. 它的
The noes have it.
投反对票者占多数.
There is no percentage in it.
没有赚头。
The ayes have it.
赞成者占多数。
