An engaging rap song for teaching students how to add, subtract, multiply, and divide fractions. Includes fun worksheets and multiple versions of the song to assist with scaffolding.
This song illustrates how to compute fractions with algebra including how to add, subtract, multiply, and divide fractions by using examples. It explains the numerator, denominator, and how to find the lowest common denominator using the greatest common factor. The teaching materials, including worksheets, activities and games, are resources for teachers and homeschool parents to create lesson plans for the song topic. Students will have a better understanding of fractions and how to use them in basic math functions.
This math song is suitable for teaching fractions to elementary school (4th grade, 5th grade and 6th grade), middle school, high school and home school students, as well as beginning college classes.
How do I work with fractions?
Oh, multiply and divide, you know?
Add, subtract can seem so hard at first
But on this track you’ll learn by the third verse
Somebody told me that they was having a problem with
Fractions and how to solve them in math style equations
Like how to add them, subtract them, and multiply them
And then divide them and have the right answer before the day’s end
Though complicated it seems, it’s not as hard if you know
The formulaic approach to find the answer
So if we start at the top and make our way to the bottom
We’ll understand through our mathematical banter
Let’s first examine a fraction, exactly what it’s
Composed of and get a little bit closer to understanding
You’ve got a number on top that’s followed next by a line
Balanced on top of a number on which it’s standing
The number on top is known as the numerator
Denominator’s the number that’s chilling down at the bottom
And all we do is just use this very knowledge as tools
To figure out computations and then we’ve got ‘em
So let’s say that we take 1∕5 + 1∕5
How do we go about coming up with an answer?
Whether addition with fractions or you’re using subtraction
There are a couple of steps you must adhere to
Since there’s a common denominator we take the 5
And drag it over and add the top numbers
1 and 1 is just 2; 2 over the 5
Makes 2∕5 the solution with no blunders.
Subtraction is just the same except you go in reverse
So 2 minus the 1 would give you 1∕5
And 1∕5 plus 1∕2 requires a li’l different math
We need the bottom numbers the same to start with
To get the lowest common denominator
Which is the smallest number that 5 and 2 go in
Divide the product of 5 and 2 by their greatest common factor (which is 1!)
And you get 10
Now, in 1∕5 you times the 5 by the 2
And then the 1 by the 2
And wind up with 2∕10
And in 1∕2, you times the 5 in the math
And wind up with 5∕10 + 2∕10 and solve that
And it’s the same if you want to subtract
So we’ll move on to multiplication and figure out that
And these ones have the easiest steps
You just times the tops by the tops
And then the bottom by the lower deck, and simplify
So now we move onward to divide
‘Cause we have cruised smoothly through this ride
So when dividing fractions, you just flip the last one
And after that, then you multiply
Example! 2∕3 ÷ 3∕4 = 2∕3 × 4∕3 = 8∕9
And that’s how you divide
It’s a fraction computation party!