What Is 1/2 Cup Plus 1/3 Cup

Okay, friend, let’s get real. You’re in the middle of baking, or maybe just trying to throw together a quick dressing. You stare at the recipe and it hits you: 1/2 cup plus 1/3 cup. Your brain freezes. Is this a math test? No, it’s just dinner.

Don’t panic. We’ve all been there, holding a measuring cup and feeling personally attacked by fractions. I promise, this is easier than it looks. Grab your coffee (or wine, no judgment) and let’s figure this out together.

Let’s be real: why is this so confusing?

Because halves and thirds are frenemies. They don’t play nice in the same cup. A half is 0.5, and a third is roughly 0.333. They’re like that couple who can’t agree on a movie: one wants action, the other wants drama.

But here’s the secret: we’re not splitting atoms. We’re just measuring flour. And you have the power to outsmart a fraction.

The simple answer (you can bake right now)

1/2 cup plus 1/3 cup equals 5/6 cup. Yes, really. That’s it. No, a 5/6 cup measure doesn’t exist in your drawer, but don’t freak out yet.

Think of it this way: if you had a pizza cut into six slices, half of it is three slices. A third is two slices. Add them together, and you’ve got five slices. That’s a lot of pizza, and a perfectly usable amount for your recipe.

So, in measurement terms: you’re looking for 5/6 of a cup. Which sounds fancy but is actually just “a little less than a full cup.” See? Not so scary.

How do you actually measure this without a meltdown?

Option one: cheat. Use a 1/3 cup measure twice (that gives you 2/3 cup), then add half of a 1/3 cup measure. But that feels like playing fraction Jenga. Let’s find a better way.

Option two: get sneaky. Just use a 1-cup liquid measure. Fill it to the 1/2 cup line, then add more until you reach the 5/6 cup line. Most glass measuring cups have those tiny numbered lines. Look closely. They’re your friends.

Option three: if you only have dry cups, measure 1/2 cup first. Then, pour that into a bowl. Now measure 1/3 cup. Dump that on top. Boom. You now have exactly 5/6 cup. No math degree required.

But wait—what if I don’t have a 1/3 cup either?

Oh, you’re living dangerously. I respect that. You can use tablespoons. 1/3 cup equals 5 tablespoons plus 1 teaspoon. So, combine 8 tablespoons (that’s 1/2 cup) with 5 tablespoons and 1 teaspoon. Total: 13 tablespoons and 1 teaspoon.

Is that annoying? Yes. Will it work? Absolutely. Just count it out slowly. Pretend you’re a scientist. A very hungry scientist.

Why does this matter in real life?

Because recipes are lying liars sometimes. They’ll call for “1 cup minus 1/8 cup” just to test your patience. But knowing that 1/2 + 1/3 = 5/6 unlocks a secret: you can double and half recipes with confidence.

For example, if you need to double a recipe that asks for 1/2 cup plus 1/3 cup, you’d need 1 and 2/3 cups. (That’s 10/6, which simplifies to 5/3. Just trust me.) But we don’t need to go there today. Today, we just need to get dinner on the table.

And next time someone asks you what’s half of 3/4 cup, you can smirk and say, “That’s 3/8 cup, of course.” They’ll think you’re a wizard. Let them.

A quick cheat sheet for your phone

Here’s the part I want you to screenshot. 1/2 cup + 1/3 cup = 5/6 cup. Memorize it, tattoo it on your arm (maybe not), or just save this article. When you’re in the kitchen, frazzled and covered in flour, this is your lifeline.

If you’re adding them to a liquid, just pour to the 1/2 mark, then top off to the “5/6” line. If you’re using dry ingredients, measure separately and combine. No fancy equipment needed.

And honestly? If you’re off by a teaspoon, the world won’t end. Your cookies will still be delicious. Baking is forgiving, people.

One last thing: you’re not dumb

Fractions are a modern evil. I blame the Romans. Or the British. Or maybe just that one math teacher who didn’t explain pizza slices well enough. The point is: you are smarter than a measuring cup.

So go pour your 1/2 cup and your 1/3 cup. Smile at the little heap of 5/6. You did it. Now add it to your recipe and pretend you knew the answer all along. High five from across the coffee table.

Now, what’s next? Maybe tackling the mystery of “what’s 1/3 cup plus 3/4 cup”? That’s a story for another coffee chat. For now, enjoy your perfectly measured creation.