To add fractions:
1. Make sure the denominators (the bottom numbers) are the same. If they are not, find the least common multiple (LCM) of the denominators and convert the fractions to have the same denominator.
2. Add the numerators (the top numbers) of the fractions together and keep the denominator the same.
3. Simplify the fraction if possible by dividing the numerator and denominator by their greatest common factor (GCF).
Example:
Add 2/3 + 5/6
Since the denominators are not the same, find the LCM of 3 and 6, which is 6.
Convert 2/3 to have a denominator of 6 by multiplying the numerator and denominator by 2.
Convert 5/6 to have a denominator of 6 by multiplying the numerator and denominator by 1.
Now the problem is 4/6 + 5/6.
Add the numerators together: 4 + 5 = 9.
The result is 9/6.
Simplify the fraction by dividing the numerator and denominator by their GCF, which is 3.
9/3 = 3/2.
To add decimals:
1. Align the decimal points of the numbers being added.
2. Add the numbers together like you would with whole numbers.
3. Place the decimal point in the result by lining it up with the decimal points in the numbers being added.
Example:
Add 2.5 + 3.75
Align the decimal points: 2.5 + 3.75
Add the numbers: 2.5 + 3.75 = 6.25
The result is 6.25.
Add Fractions & Decimals Quick Check
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