Question

Subtract rational number is practice

Answer 1

To subtract rational numbers, you need to follow these steps:

Step 1: Identify the rational numbers you want to subtract.

Step 2: Ensure that both rational numbers have a common denominator. If they don't, find the least common multiple (LCM) of the denominators and rewrite both rational numbers with the same denominator.

Step 3: Once you have the rational numbers with the same denominator, subtract the numerators and keep the denominator the same.

Step 4: Simplify the resulting fraction, if necessary, by reducing the numerator and denominator to their lowest terms.

Let's look at an example:

Example: Subtract 3/4 from 5/6.

Step 1: The rational numbers we want to subtract are 3/4 and 5/6.

Step 2: The denominators are 4 and 6, which can be written as 2*2 and 2*3, respectively. To make them have a common denominator, we need to find the LCM (2*2*3 = 12).

Step 3: Rewrite both rational numbers with the denominator 12: 3/4 becomes 9/12, and 5/6 becomes 10/12.

Step 4: Subtract the numerators and keep the denominator the same: 10/12 - 9/12 = 1/12.

Final answer: 1/12.

So, the difference between 3/4 and 5/6 is 1/12.