﻿ How to Simplify Fractions, Rules, Questions | Grades 9-10

# Questions on Simplification

## Questions on Simplifications - Sub Topics

• Simplification
• Simplification of Fraction
• Rules of Simplification
• Tricks of Simplification
• The reading material provided on this page for Simplification is specifically designed for students in grades 9 and 10. So, let's begin!

## What is Simplification?

In mathematics, simplification is the process of making an expression or equation simpler without changing its value. This can be done by combining like terms, reducing fractions or using the properties of algebraic operations.

## How to do Simplification of Fractions?

A fraction is a way of expressing a number as a ratio of two quantities, with the numerator representing the part and the denominator representing the whole. Simplifying a fraction means reducing it to its lowest terms, which means finding the greatest common factor (GCF) of the numerator and denominator and dividing both by it.

For example:

1. Simplifying the fraction 8/12: The GCF of 8 and 12 is 4, so we can divide both by 4 to get 2/3. This fraction is in its lowest terms because there are no other factors that can divide both the numerator and denominator.

2. Simplifying the fraction 15/25: The GCF of 15 and 25 is 5, so we can divide both by 5 to get 3/5. This fraction is also in its lowest terms.

3. Simplifying the fraction 24/36: The GCF of 24 and 36 is 12, so we can divide both by 12 to get 2/3. This fraction is already in its lowest terms, as there are no other factors that can divide both the numerator and denominator.

In all the above examples, the simplified fraction has a numerator and denominator that have no factors in common except 1.

## Rules of Simplification

2. Use the order of operations (PEMDAS) to simplify the expression: Parentheses, Exponents, Multiplication, Division (from left to right), Addition and Subtraction (from left to right).

3. Simplify any fractions or decimals by dividing the numerator by the denominator.

4. Simplify any radicals by finding the square and cube root of the number under the radical sign.

5. If a term can be combined with another term, combine them.

6. If a term can be factored, factor it.

7. If a term can be simplified further, simplify it.

## Tricks of Simplification

1. Break down complex expressions into simpler parts: When faced with a complex expression, it is easier to simplify it by breaking it down into smaller parts.

For example, if you have an expression such as (x + 2) x (x + 3), you can simplify it by multiplying the x terms and the constant terms separately.

2. Use the order of operations: Always remember to use the order of operations (PEMDAS) when simplifying an expression. This will ensure that you perform the correct operations in the correct order and avoid making any mistakes.

3. Use common algebraic properties: There are certain properties of algebra that you can use to simplify expressions.

For example, you can use the distributive property to multiply a constant and a variable, or you can use the commutative property to rearrange the terms in an expression.

4. Combine like terms: When you have an expression with multiple terms, you can simplify it by combining like terms.

For example, if you have the expression 3x + 2x, you can combine them to get 5x.

5. Factorize expressions: Factorizing an expression is a way of breaking it down into simpler parts.

For example, if you have the expression x2 + 2x + 1, you can factorize it to get (x + 1)2.

6. Practice: The more you practice simplifying expressions, the better you will become at it. Try to solve as many practice problems as you can and make sure to understand the reasoning behind each step.

## Quick Video Recap

In this section, you will find interesting and well-explained topic-wise video summary of the topic, perfect for quick revision before your Olympiad exams.

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