Add Fractions & Decimals Quick Ch
To add fractions, follow these steps:
1. Find a common denominator for the fractions. This is a number that both denominators can evenly divide into. For example, if you are adding 1/4 and 3/8, the common denominator is 8.
2. Convert the fractions to have the common denominator. In our example, we would convert 1/4 to 2/8 (by multiplying the numerator and denominator by 2).
3. Add the numerators together and keep the common denominator. In our example, 2/8 + 3/8 = 5/8.
4. Simplify the fraction if possible. In our example, 5/8 is already in its simplest form.
To add decimals, follow these steps:
1. Align the decimal points.
2. Add the numbers together as if they were whole numbers.
3. Place the decimal point in the same position as the original decimals being added.
For example, to add 2.5 and 1.7:
2.5
+ 1.7
------
4.2
So, 2.5 + 1.7 = 4.2.
To add fractions and decimals quickly, follow these steps:
1. If the fractions have different denominators, find a common denominator by finding the least common multiple (LCM) of the denominators. For example, if you have 1/3 and 1/4, the LCM of 3 and 4 is 12.
2. Convert the fractions to have the common denominator. To do this, multiply both the numerator and denominator of each fraction by the same value so that the denominators become the common denominator. For example, to convert 1/3 to have a denominator of 12, you would multiply both the numerator and denominator by 4: (1/3) x (4/4) = 4/12.
3. Once the denominators are the same, you can add the numerators together. For example, if you have 4/12 and 1/4, you would add the numerators to get 4 + 3 = 7. The denominator stays the same: 12.
4. Simplify the fraction, if necessary. In this example, the fraction 7/12 is already in its simplest form.
5. If you have decimals, you can directly add them together by lining up the decimal points and adding the digits. For example, if you have 1.5 and 2.25, you would line up the decimal points and add the digits: 1.50 + 2.25 = 3.75.
That's it! Following these steps will help you quickly add fractions and decimals.