## What is the first rule in multiplying fractions?

The **first rule in multiplying fractions** is to **multiply** the numerators of the **fractions**. The numerator of a **fraction** is the number that appears on top.

## Do you multiply across fractions?

No, **you** cannot **cross multiply** when adding **fractions**. **Cross multiply** only when **you** need to determine if one fraction is greater than another, or if **you** are trying to find a missing numerator or denominator in equivalent **fractions**.

## What are the 4 rules of fractions?

- Rules for fractions. tudent.
- C. earning.
- L. S.
- ADDITION AND
**SUBTRACTION**. To add or**subtract**fractions they must have the same denominator (the bottom value). - Addition and
**Subtraction**with different denominators. If the denominators are different then a common denominator needs to be found. **MULTIPLICATION**.- a.
**DIVISION**.

## What do you have to remember when multiplying fractions?

All **you have** to **do** is **multiply** the numerators together and write those as the numerator of your answer; then **multiply** the denominators together and **multiply** those as the denominator of your answer.

## Why is multiplying fractions important?

**Fractions** help children understand the nature of numbers and their interactions (e.g., the meaning of division). If a child doesn’t understand how **fractions** work, it will interfere with his ability to learn algebra later.

## How do you cross multiply 3 fractions?

To **multiply** any **3 fractions**, **multiply** the **three** numerators and then **multiply** the **three** denominators. After **multiplying** the numerators and denominators, write them as **fractions**. This will give the product of **3 fractions** in fractional form.

## Do you add or multiply fractions first?

If the denominators **are** not already the same number (like if **you** want **to add** 1/4 + 2/3), **you**‘ll need **to multiply** them together. The figure **you** get from the **multiplication** becomes the common denominator, and therefore forms the bottom part of each **fraction** in the sum.

## How do I solve fractions?

If the **fractions** aren’t already in the lowest terms, reduce them. Then, all you need to do is multiply the numerator by the numerator and the denominator by the denominator. For instance, to multiply 2/3 and 7/8, find the new numerator by multiplying 2 by 7, which is 14.

## How do you simplify fractions step by step?

**How to Reduce Fractions**

- Write down the factors for the numerator and the denominator.
- Determine the largest factor that is common between the two.
- Divide the numerator and denominator by the greatest common factor.
- Write down the reduced
**fraction**.

## What are the rules for multiplying and dividing fractions?

**To multiply fractions**, all you have to do is **multiply** the numerators and denominators and simplify the result. To **divide fractions**, you simply have to flip the numerator and denominator of one of the **fractions**, **multiply** the result by the other **fraction**, and simplify.

## What is the difference between multiplying and dividing fractions?

The main **difference between multiplying and dividing** is that you change it to the reciprocal. The reciprocal is what you **multiply** the number by to make it 1. For example, 5/3 **divided** by 2/3 would be the same as 5/3 * 3/2.

## What is the rule for multiplying integers?

Multiplication and **Division** of Integers. RULE 1: The product of a positive integer and a negative integer is negative. RULE 2: The product of two positive integers is positive. RULE 3: The product of two negative integers is positive.