Vocabulary consisting only from characters you are able to read
分の
ぶんの
denominator bun no numerator (in writing common fractions), X Yth's (Y bun no X)jlpt3, math
一口
ひとくち
(1)mouthful, bite, sip, draft, draught, (2)one word mix
二人
ふたり
two persons, two people, pair, couplejlpt5
耳にする
みみにする
to hear, to hear by chance, to hear by accident, to catch (the sound)suru