- Home/
- SSC & Railways/
- Article
If you subtract 1/2 from a number and multiply the result by 1/2, you get 1/8. What is the number?
By BYJU'S Exam Prep
Updated on: September 25th, 2023
If you subtract 1/2 from a number and multiply the result by 1/2, you get 1/8. The number is 3/4. Steps to calculate the Subtraction and Multiplication of fractions:
Step 1: Form the given equation
Let the number be x.
According to the question,
(x – ½) ½ = ⅛
Step 2: Solve for x
When we evaluate this equation, we obtain,
(x – ½) ½ = ⅛
x – 1/2 = 2/8
In simplification we get the:
(2x – 1)/2 = 2/8
2x – 1 = 4/8
2x – 1 = ½
On rearranging we get:
2x = 1 + ½
2x = 3/2
x = ¾
Therefore, the required number is 3/4
Table of content
Subtraction of fractions
Depending on the sorts of fractions provided, subtraction of fractions is possible. The next is how to accomplish this.
- If the given fractions are similar fractions, keep the denominator the same and subtract the numerators. To obtain the answer, first, try to simplify the fraction.
- Convert the given fractions into like fractions and then proceed as before if they are unlike fractions.
Multiplication tricks
Single-digit number multiplication is a simple task. However, multiplying numbers with two or more digits can be challenging and time-consuming. Here are a few tips for multiplication that students might keep in mind while determining the final result.
- Any order can be used to multiply numbers.
- Simply place the number of zeros equal to multiples of 10 next to the multiplier when multiplying a number by multiples of 10.
- When multiplying three integers, multiply the smaller numbers first for speed of calculation before multiplying the third number.
- If there are two or three digits in the multiplication, write them in the expanded form before multiplying.
- Observe the sign guidelines listed in the preceding section.
Summary:
If you subtract 1/2 from a number and multiply the result by 1/2, you get 1/8. What is the number?
If you subtract 1/2 from a number and multiply the result by 1/2, you get 1/8. The number is ¾. Subtraction indicates the operation of removing objects from a collection.