Denominator is defined as the divisor or the number which is below the line in a fraction. The upper number is numerator. This can be better explained by taking the fraction, say x/y. In this fraction x is numerator while y is denominator. To solve any problem related to fraction such as addition and subtraction, it is mandatory to take Least common multiple of the denominator. After finding the Least common multiple we can use cross multiply method to solve or find the value of fraction problem.
Denominator definition is more clarified by the below mentioned examples.
Question 1: Write down the denominators of the following problem and also solve the problem mentioned below: 4/5 + 3/2
Solution: In the given problem 4/5 + 3/2, the denominator in first term is 5 and denominator in second term is 2.
Now to solve the problem, first we need to find the Least common multiple of the denominator that is the LCM of 5 and 2 which is 10
Therefore, 4/5 + 3/2
= 23/10 = 2.3
Hence after solving 4/5 + 3/2 we get 2.3 as a solution.
Question 2: Find the denominator after solving the below mentioned problem: 2/3+ 3/2
Solution: In the problem 2/3+ 3/2, the denominator of first term is 3 and denominator of second term is 2.
Therefore the Least common multiple of 3 and2 is 6.
Hence on solving, 2/3+ 3/2
= (4+ 9)/6
Hence the LCM after solving is 13/6.