The world's biggest "telly" is 205 inches large.
the worlds biggest bug is a teranchilla
Islam is the worlds biggest religon, Christianity is the worlds most popular.
the worlds biggest yoyo is about the size of a hobo
The worlds biggest came to 84cm
The Taiga is the worlds biggest biome, not the Desert.
The Amazon is the worlds biggest rain forest
The Catholic Church is the biggest charity in the worlds.
the worlds biggest volcano is Mauna Lao is in Hawaii
Russia is the biggest
It is a Irish Wolfhound and the male is at least 32"; and the female is at least 30"
There is no such thing as a biggest fraction, for the same reason that there is no biggest number. For example, if you have a large (finite) number, you can always add 1 to it to get an even larger number.