When adding fractions, we only add the numerators because the fractions must have a common denominator to represent the same whole. The denominator indicates how many equal parts the whole is divided into, so when the denominators are the same, we can simply combine the parts represented by the numerators. This allows us to express the total number of parts while keeping the same size of the whole. Thus, the formula becomes (\frac{a}{c} + \frac{b}{c} = \frac{a + b}{c}).
You add or subtract only the numerators
Numerators
When adding fractions, you only add the numerators if the denominators are the same. If the denominators are different, you must first find a common denominator before adding the numerators. Once you have a common denominator, you can add the numerators together and keep the common denominator the same. Finally, simplify the resulting fraction if possible.
Numerators
No. Convert them to like denominators and add the numerators.
You add or subtract only the numerators
Numerators
When adding like fractions, only the numerators are added.
You first add the numerators then take the denominator to the bottom of the sum of the numerators.
When adding fractions, you only add the numerators if the denominators are the same. If the denominators are different, you must first find a common denominator before adding the numerators. Once you have a common denominator, you can add the numerators together and keep the common denominator the same. Finally, simplify the resulting fraction if possible.
Numerators
If the denominator is the same, you just add the numerators - just as with plain numbers.
It stays the same. Only the numerators change.
No. Convert them to like denominators and add the numerators.
To add fractions, you cannot simply add the numberators and add the denominators. To add fractions, they must first have the same denominator. Once they have the same denominator, you can then simply add the numerators.
add numerators
Unless you are using a calculator that adds them for you, it is much harder to add fractions with uncommon denominators. Having the same denominator allows you to only have to add the numerators for your answer.