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Fractions - Using a Pizza to Illustrate Fractions

Updated on July 2, 2020

Pizza

Remember when you said you didn't want to learn fractions because you said you would never use them? Well. It's not true. You use them for cooking all the time. You use them in cutting a pizza.

Fractions, as used in describing the following pizza. I cooked a Pepperoni and Sausage pizza. I added several cut green olives to it. After it was cooked to a melted cheese wonder, I sat it on top of a cutting board.

As an uncut pizza, it was whole. Let me repeat that. It was whole. Whole is a fraction term. Whole is what you start with. No fractions.

I sliced the pizza across with a pizza cutter. I sliced right down the middle all the way across and made two pieces.My pizza was cut in half. There were two pieces of pizza at this point. The two pieces made one pizza. So, I can say I have two halves of a pizza. We write two halves like 2/2. One of the pieces is 1/2. The "/" means of. 1/2 plus 1/2 equals 1 whole pizza.

Then. I turned the pizza and cut it across again. I had four equal slices. Those four pieces are now fourths, because there are four of them. Written 1/4. 1/4 plus 1/4 plus 1/4 plus 1/4 equals 1 whole pizza.

Then, I cut across the entire pizza again, through each 1/4 section. Now I have eight pieces of pizza. Written 1/8;. 1/8 plus 1/8 plus 1/8 plus 1/8 plus 1/8 plus 1/8 plus 1/8 plus 1/8 equals 1 whole pizza.



My first cut across the pizza, cut it in two pieces. Each piece was half of the pizza. Half is a math term. It's written 1/2. 1 of 2. the '/' means of.
My first cut across the pizza, cut it in two pieces. Each piece was half of the pizza. Half is a math term. It's written 1/2. 1 of 2. the '/' means of.

It Is Less Complicated than You Think

You know that most people will cut a pizza into eight pieces. Some people do not care and cut squares. Those squares are also math, but, we are not cutting this pizza into squares.

Fractions are wedges in my example.


This uncut pizza is a whole pizza. Whole is a math term.
This uncut pizza is a whole pizza. Whole is a math term.
This is a pizza cutter. I will use it to illustrate the use of fractions. A fraction is a math term and means that I cut my whole piece into smaller pieces equally. You write the pizza cutter as '/'.
This is a pizza cutter. I will use it to illustrate the use of fractions. A fraction is a math term and means that I cut my whole piece into smaller pieces equally. You write the pizza cutter as '/'.
I cut across the pizza and cut it in half. Half is a math term. Written 1/2. One of two.
I cut across the pizza and cut it in half. Half is a math term. Written 1/2. One of two.
I cut across again, the other direction, causing four equal pieces. Fourth is a math term. Written 1/4. One of four.
I cut across again, the other direction, causing four equal pieces. Fourth is a math term. Written 1/4. One of four.
I cut across two more times, causing eight equal pieces. Eighth is a math term. Written 1/8. One of eight.
I cut across two more times, causing eight equal pieces. Eighth is a math term. Written 1/8. One of eight.
See the newest cuts?
See the newest cuts?
I will separate the eight pieces. They are eighths. Eighth is a math term. You write it 1/8. One of eight.
I will separate the eight pieces. They are eighths. Eighth is a math term. You write it 1/8. One of eight.

Subtracting Fractions is Easy Enough

I ate one slice at this point. Remember it was cut into eighths? There are 7 pieces left. Written 7/8. Seven of eight pieces remain.

Not for long. Soon there was 6/8. Then 5/8, then 4/8. then 3/8, then, well. I put 2/8 of the pizza into the refrigerator. I wasn't really hungry and I probably should not have eaten almost all of the pizza, but it happens.

Comments

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    • firstcookbooklady profile imageAUTHOR

      Char Milbrett 

      12 months ago from Minnesota

      Umesh Chandra Bhatt , thank you for your comment. I was very much older before I understood the concepts of basic arithmetic.

    • bhattuc profile image

      Umesh Chandra Bhatt 

      12 months ago from Kharghar, Navi Mumbai, India

      I think it is interesting to explain to children with this method. Nice.

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