What is a common fraction?please explain in english

What is a common fraction?please explain in english Please explain what is what 'is a hat?Please answer the question in English. 1.What is the common world in English? Please explain “Magna Carta” in English. what do the following words have in common?please in english what is culture?please answer in English please explain with english spell you name please what is this in english -this is a key Find the errors and explain in English,please! 用please,what,in,this,English,is（?）造句 what is the sonnet? please help me to explain it.