fractions

Fractions

A fraction simply tells us how many parts of a whole we have. You can recognize a fraction by the slash that is written between the two numbers. We have a top number, the denominator , and a bottom number,       the numerator. For example, 1/2 is a fraction.

fraction

denominator

parts

numerator

               

¼ 

⅔ 

2/4 

⅗ 

✓

Algebra is the language of mathematics. In algebra we use letters      to represent numbers  . ... Finally and most importantly, we can use algebra to solve  problems       . 

numbers

letters

mathematics

problems

3xn=15   n=5

2+8=n     n=10

n-6=8      n=14

20÷n=     n=4