LI : To add Fractions
When adding fractions with common denominators, we just add the numerator, and the denominator stays the same. When we don’t have a common denominator, it won’t work out. For example, ½ of the class has a pet dog, and ⅓ of the class has a pet cat. What fraction of the class has a pet?
First, we have to make the fractions have common denominators. To do that, we have to find the lowest common multiple for the denominators. In this case, 2 and 3. The lowest common multiple for 2 and is 6. Remember, whatever you do to the denominator, you do to the numerator. So if we are multiplying the denominator 2 by 3 to make 6, we have to multiply the numerator by 3. Along with the ⅓, if we are multiplying the denominator by 2 to make 6, we have to do the same to the numerator (multiply it by 2).
The question is now 3/6 + 2/6. Since the denominators are the same, we just add the numerators and the denominators stay the same. The answer should be ⅚. ⅚ of the class have pets.
I found this task interesting because I got to learn how to add fractions.