I am linking up again with all the amazing gals of the Math is Real Life blog hop:  4mulaFun, Fourth Grade Studio, Teaching to Inspire in 5th, AND MissMathDork.  I love this stuff!

Crepe Craving

So the other night, I had a craving for crepes and my grocery store had strawberries on sale!  Score!!  I went right home and searched for a new crepe recipe that works better with my crepe maker.  As I browsed Pinterest, I found this one that works oh so nicely…

The picture definitely grabbed my attention.  Doesn't it look divine??  Maria of The Mother Huddle knows what she's doing in the kitchen.  I have to admit though, sometimes I really hate trying recipes from Pinterest…they usually don't turn out or the directions are vague with too many assumptions (ie:  add one can–I am wondering what size of can?? sheesh)  This picture made me excited to try again.

Making a Ratio Table to Adjust the Recipe

I got the ingredients out and noticed that I had 4 eggs, but the recipe called for only 3.  I really didn't want to waste that one egg, so my mind turned to RATIOS!  Yes, I set up a ratio table so I could adjust the ingredients to 4 eggs and use that last one.

Here is the original recipe:

1/3 tsp salt

3 eggs

1-1/2 cups milk

1-1/2 cups all-purpose flour

2 Tbsp vegetable oil or melted butter

I needed to find out the measurements for one egg per every ingredient.  I divided all of the ingredients by 3 to find that answer as shown in my ratio table below.

After I found those amounts, I added them straight down the columns…making sure to change all denominators into like denominators so I could add.

Finding Equivalent Fractions

So you may be thinking 4/9 of a tsp is kind of a weird measurement!  I would agree, but let's reason through how I would add it to the mix.  If I look at the original measurement for 1/3 tsp of salt, I could in turn make that into an equivalent fraction of 3/9– which is close to 4/9.   I would measure out the original 1/3 tsp and add a pinch more.  Now for the 2/3 of a Tbsp, let's use unit conversions here.  There are 3 tsps in 1 Tbsp.  So you could use the tsp measurement and scoop it out twice.  1/3 Tbsp (1 tsp) + 1/3 Tbsp (1 tsp) = 2/3 Tbsp.

The results were fantastic!  Thanks to Maria for making yummy food and sharing with the world. I love this recipe and I hope you'll try it out at home and make a GIANT batch.  Math is everywhere 🙂