Converting 5/4 to Decimal Form: Fraction Division Guide

Question

Convert to decimal fraction 54 \frac{5}{4}

Video Solution

Solution Steps

00:00 Convert to decimal fraction
00:03 We want a denominator that's a multiple of 10 and 10
00:08 Therefore we'll expand the fraction, making sure to multiply both numerator and denominator
00:30 Convert to decimal fraction
00:33 We'll write the numerator as a whole number
00:36 When the denominator equals 100
00:39 Move the decimal point 2 places to the left
00:42 And this is the solution to the question

Step-by-Step Solution

To solve this problem, we'll follow these steps:

  • Step 1: Directly divide the numerator by the denominator.
  • Step 2: Perform long division to find the decimal equivalent.
  • Step 3: Use equivalent fractions to line up the denominator with a power of 10, like 100.

Now, let's work through each step:

Step 1: The fraction given is 54 \frac{5}{4} .

Step 2: Perform the long division:
Divide 5 by 4:

  • 4 goes into 5 once, which gives us a whole number of 1. The remainder is 1.
  • Bring down a 0 to make 10; 4 goes into 10 twice, giving a decimal value 2 (0.2) and a remainder of 2.
  • Bring down another 0 to make 20; 4 goes into 20 exactly 5 times, completing the calculation with no remainder.
This results in a decimal value of 1.25.

Step 3: Convert it to a fraction with a denominator of 100:
- Multiply by 25 to make an equivalent fraction 5×254×25=125100 \frac{5 \times 25}{4 \times 25} = \frac{125}{100} , which directly converts to 1.25 in decimal.

Therefore, the solution to the problem is 1.25.

Answer

1.25