Next-Gen

# Fraction

In Glogpedia

Last updated 3 years ago

Discipline:
Math
Subject:
Fractions
7

Fractions

Improper fractions are fractions which the *numerator is greater than the *denominator.e.g (9/3, 12/6 and 21/18)You end up with improper fractions when you add, subtract and multiply.*numerator: left/top number that represents part of the whole.*denominator: right/bottom number that represents what the numerator is out of.

Fractions are numbers that represents part of a whole number or a set. E.g ( 3/7, 15/12 and 3 8/9) There are different types of fractions like: improper fractions, mixed fractions and proper fractions.

By: Giacomo Cristiano

What are fractions?

What are improper fractions?

What are Mixed Fractions?

Mixed fractions are fractions which are a combination of a whole number and a proper fraction. e.g ( 4 2/5, 2 6/8 and 8 2/3)

We reduce fractions because we want them in the simplest form possible. To reduce a fraction just simply divide both numerator and denominator by the same number to get the smallest fraction possible.

Note: Not ALL fractions can be reduced

Subtracting Fractions

Like adding fractions, to subtract fractions just find the LCM (lowest common multiple) for the denominators and then subtract. Sample question: Michael planted 2 3/5 rows of corn and 5 5/6 rows of potatoes. How many more rows of potatoes than corn are there?Answer: 5 5/6 - 2 3/5 = 3 7/30

When adding and subtracting fractions, if you get a mixed fraction for an answer, do not reduce the whole number.

To add fractions get both denominators equal by finding the LCM (lowest common multiple), and then add. Sample question: Tyrell and his friends ordered 6 pizza pockets. They ate 2 3/4 at the beginning and 1 2/3 later on. How many pizzas did Tyrell and his friends eat in total?Answer: 2 3/4 + 1 2/3 = 3 17/15 = 4 5/12 pizzas

How and why do we reduce fractions?

Multiplying fractions is by far the easiest and fastest way of getting an answer. When multiplying a whole number by a proper fraction, multiply the whole number by the numerator, leaving the denominator the same. Sample question: Giacomo spends 6/8 of an hour each day playing soccer. How much time did Giacomo spend if this went on for 9 days?Answer: 9 * 6/8 = 54/8 = 6 6/8 hours

Multiplying Fractions

If your answer for any type of fraction problem is an improper fraction, convert it into a mixed fraction.

Remember:

Example of how to multiply a whole number by a fraction

Example of how to reduce a fraction