\frac7561820 = \frac189455 - Professionaloutdoormedia
Understanding the Simple Fraction Equality: $ rac{756}{1820} = rac{189}{455} $
Understanding the Simple Fraction Equality: $ rac{756}{1820} = rac{189}{455} $
When simplifying fractions, one common technique is to reduce them to their lowest terms ΓΒΓΒ’ΓΒΓΒΓΒΓΒ and in this article, we explore how $ rac{756}{1820} $ equals $ rac{189}{455} $ through elegant fraction simplification. This process not only reveals the mathematical connection between these two fractions but also demonstrates the power of the greatest common divisor (GCD) in reducing complex ratios.
Understanding the Context
What Are Equivalent Fractions?
Equivalent fractions represent the same value using different numerators and denominators. For example, $ rac{1}{2} $, $ rac{2}{4} $, and $ rac{189}{455} $ are all equivalent expressions of the same quantity. One key way to find equivalent fractions is by simplifying a given fraction to lowest terms.
Simplifying $ rac{756}{1820} $
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Key Insights
To simplify $ rac{756}{1820} $, we begin by finding the greatest common divisor (GCD) of the numerator and denominator.
Step 1: Factor both numbers
-
Prime factorization of 756:
$ 756 = 2^2 \cdot 3^3 \cdot 7 $ -
Prime factorization of 1820:
$ 1820 = 2^2 \cdot 5 \cdot 7 \cdot 13 $
Step 2: Identify the common factors
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π° Question: A right triangle has an inradius of $ 4 $ units and a hypotenuse of $ 20 $ units. What is the ratio of the area of the incircle to the area of the triangle? π° Question: A rectangular excavation site measures $ 8 $ meters by $ 15 $ meters and is surrounded by a circular foundation. What is the circumference of the foundation, in meters? π° Question: A triangle has side lengths $ 13 $, $ 14 $, and $ 15 $. What is the length of the shortest altitude?Final Thoughts
The common prime factors are $ 2^2 $ and $ 7 $:
$$
\ ext{GCD}(756, 1820) = 2^2 \cdot 7 = 4 \cdot 7 = 28
$$
Divide numerator and denominator by the GCD
Now divide both the numerator and denominator by 28:
$$
rac{756 \div 28}{1820 \div 28} = rac{27}{65}
$$
Wait ΓΒΓΒ’ΓΒΓΒΓΒΓΒ but earlier we claimed $ rac{756}{1820} = rac{189}{455} $. LetΓΒΓΒ’ΓΒΓΒΓΒΓΒs verify that:
- $ 756 \div 28 = 27 $
- $ 1820 \div 28 = 65 $
So $ rac{756}{1820} = rac{27}{65} $
But the claim is $ rac{756}{1820} = rac{189}{455} $ ΓΒΓΒ’ΓΒΓΒΓΒΓΒ these appear unequal at first glance.
