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What is Comparing and Ordering of Fractions

December 2, 2020 by sastry

What is Comparing and Ordering of Fractions

Comparison of fractions are divided into three categories.

1. Fraction with the same numerator

Let us consider the following fractions with the same numerator: \(\frac{1}{3}\), \(\frac{1}{2}\), \(\frac{1}{6}\)
The pictorial representation of these fractions are given below:
What is Comparing and Ordering of Fractions 1
By looking at the shaded portion in these pictures, we can conclude that
shaded area of B > shaded area of A > shaded area of C
or \(\frac{1}{2}\) > \(\frac{1}{3}\) > \(\frac{1}{6}\)
Thus, we conclude that if two or more fractions have the same numerator, then the fraction with a smaller denominator is greater.

Read More:

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2. Fraction with the same denominator

Let us consider the following fractions with the same denominator \(\frac{1}{8}\), \(\frac{3}{8}\), \(\frac{4}{8}\), \(\frac{7}{8}\)
The pictorial representation of these fractions are given below:
What is Comparing and Ordering of Fractions 2
By looking at the shaded portion in these pictures, we can easily say that
shaded area of D > shaded area of C > shaded area of B > shaded area of A
\(\frac{7}{8}\) > \(\frac{4}{8}\) > \(\frac{3}{8}\) > \(\frac{1}{8}\)
Thus, we conclude that if two or more fractions have the same denominator, then the fraction with the greater numerator is the greater fraction.

3. Fractions with different numerators and denominators

To compare the fractions with different numerators and denominators, first we find the LCM of their denominators. Then, we make the denominator of each fraction equal to the LCM by multiplying with a suitable number.

Example 1: Compare the fractions \(\frac{3}{4}\), \(\frac{5}{6}\), \(\frac{6}{7}\), \(\frac{7}{8}\)
Solution: LCM of denominators 4,6,7, and 8 = 168
Hence, the given fractions can be written as
What is Comparing and Ordering of Fractions 3
given fractions can be written as
What is Comparing and Ordering of Fractions 4

Example 2: Arrange the following fractions in ascending order:
Solution: LCM of denominators 4,2,8, and 16
Hence, the given fractions can be written as
What is Comparing and Ordering of Fractions 5
What is Comparing and Ordering of Fractions 6

Maths

Filed Under: Mathematics Tagged With: Comparing and Ordering of Fractions, Fraction with the same denominator, Fraction with the same numerator, Fractions with different numerators and denominators, Maths, Pre Algebra

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