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Fractions are a specific type of ratio that compares a part to a whole. Fractions are rational numbers written in the form ab, where the numerator a is the part and the denominator b is the whole.
l part→ whole→ a/b l←numerator ←denominator
a over b.Fractions where a is less than b are called proper fractions. Fractions where a is greater than or equal to b are called improper fractions.
A mixed number consists of a non-zero integer number and a proper fraction.
a bc [0.5em]
whereais an integer,b
Any mixed number can be written as an improper fraction using the following formula. a bc=a* c+b/c and - a bc=- a* c+b/c
fourth rootof 16. Notice that sqrt(16) simplifies to 2 because 2 multiplied by itself 4 times equals 16. sqrt(16) = sqrt(2^4) = 2 The general expression sqrt(a) represents a number which equals a when multiplied by itself n times.
sqrt(a) * sqrt(a) * ... * sqrt(a)_(ntimes)=a or ( sqrt(a) )^n=a