reduce to common denominator
Tone colorsmāmámǎmàma
Meanings
1 sense · 3 examplesverb
to reduce fractions to a common denominator
In mathematics, this operation converts fractions with different denominators into equivalent fractions sharing a common denominator, usually the least common multiple (LCM) of the original denominators. The resulting shared denominator is called the common denominator (公分母).
Jì计
suàn算
èr1
fēn/
zhī2
yī加
jiā1
sān/
fēn3
zhī之
yī前
，
zhī我
qián们
wǒ需
men要
xū先
yào通
xiān分
。
Before calculating one-half plus one-third, we need to reduce them to a common denominator first.
Tōng通
fēn分
hòu后
de的
gōng公
fēn分
mǔ母
shì是
liù6
，
suǒ所
yǐ以
èr1
fēn/
zhī2
yī变
biàn成
chéng3
sān/
fēn6
，
zhī1
liù/
sān3
fēn变
zhī成
yī2
biàn/
chéng6
。
The common denominator after conversion is six, so one-half becomes three-sixths and one-third becomes two-sixths.
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Lǎo老
shī师
jiāo教
wǒ我
men们
rú如
hé何
yòng用
zuì最
xiǎo公
gōng倍
bèi数
shù作
zuò为
wéi公
gōng分
fēn母
mǔ来
lái通
tōng分
。
The teacher taught us how to use the least common multiple as the common denominator to reduce fractions.