What Does โDivide sth by sthโ Mean?
โDivide sth by sthโ means to split a number or amount into equal parts by using another number. It is commonly used in math to show how one quantity is separated into a certain number of parts.
Introduction
The phrase โdivide sth by sthโ is a basic and important expression in English, especially when talking about mathematics or sharing things equally. The โsthโ stands for โsomething,โ which means you can replace it with any number or quantity. For example, if you divide 20 by 4, you are splitting 20 into 4 equal parts, which gives 5 in each part. Understanding the divide sth by sth meaning helps learners use this phrase correctly in both speaking and writing. It is a simple way to describe the action of splitting or sharing something into parts using division.
Quick Info Box
- Phrasal verb: divide sth by sth (divide something by something)
- Type: Transitive
- Level: A1 (Beginner)
- Short meaning: To split a number or amount into equal parts using division
Structure (Grammar Rules)
โDivide sth by sthโ is a transitive phrase and is inseparable, meaning you cannot put words between โdivideโ and โby.โ The structure follows this pattern:
- Subject + divide + something + by + something
Example: She divides 12 by 3.
You cannot say: She divides by 3 12.
How to Use โDivide sth by sthโ?
Use โdivide sth by sthโ when you want to express the division of one number by another. It can be used in math lessons, everyday conversations about sharing, or explaining calculations. The first โsthโ is the number or amount you want to split, and the second โsthโ is the number you are dividing by.
For example, in math: โIf you divide 30 by 5, you get 6.โ In daily life: โWe need to divide the cake by the number of guests.โ
Examples
- To find the average, you divide the total sum by the number of items.
- If you divide 100 by 4, the answer is 25.
- She divided the money by the number of people to be fair.
- Can you divide this number by 2 and tell me the result?
- Divide the length by the width to calculate the aspect ratio.
These examples show how to use โdivide sth by sth in a sentenceโ naturally.
Common Mistakes
- Incorrect: Divide by 5 the number 20.
- Correct: Divide 20 by 5.
- Incorrect: Divide 10 with 2.
- Correct: Divide 10 by 2.
Remember, always use โbyโ after โdivideโ to show what you are dividing with.
Differences / Synonyms
The phrase โdivide sth by sthโ is specific to mathematical division. Similar phrases include:
- Split sth into sth: Focuses on dividing something into parts but not necessarily mathematically. Example: โSplit the cake into 8 pieces.โ
- Share sth among sth: Used for distributing something equally among people. Example: โShare the money among the three friends.โ
Unlike โsplitโ or โshare,โ โdivide sth by sthโ always involves numbers and division.
Common Collocations
- Divide a number by another number (e.g., divide 12 by 3)
- Divide the total by the quantity
- Divide the cost by the number of people
- Divide the length by the width
- Divide the amount by the units
These collocations help you understand the common contexts for using this phrase.
Related Phrasal Verbs
Here are related phrasal verbs of divide sth by sth:
Real-life Dialogue
Anna: How do I find out how many apples each person gets if I have 24 apples and 6 people?
Tom: You divide 24 by 6. That means each person gets 4 apples.
Anna: Oh, so divide sth by sth means splitting the total into equal parts?
Tom: Exactly!
Practice
Fill in the blank with the correct numbers:
โIf you ______ 45 by 9, you get ______.โ
- a) divide / 5
- b) divide / 6
- c) split / 5
Answer: a) divide / 5
FAQs
- Q: Can I say โdivide byโ without an object before it?
A: No, you need to mention what you are dividing first (e.g., divide 20 by 4). - Q: Is โdivide sth by sthโ only for numbers?
A: Mostly yes, it is used for numbers or amounts. - Q: Can I use โdivideโ without โbyโ?
A: In math, โdivideโ is usually followed by โbyโ to show the divisor. - Q: What is the difference between โdivideโ and โsplitโ?
A: โDivideโ is mathematical; โsplitโ is more general.
