If the fractions have the same denominators, just add the numerators: 2/7 + 3/7 = 5/7
If the fractions have different denominators, it is necessary to make them the same by finding the least common denominator, and converting the fractions.
Example 1/3 + 1/4
The LCD for 3 and 4 is 12.
1/3 = 4/12
1/4 = 3/12
Now that the denominators are the same, we can add the numerators.
4/12 + 3/12 = 7/12
1/3 + 1/4 = 7/12
Because you can't add or subtract fractions that have different denominators. Making them like fractions, by multiplying so the denominators are the same, you can add and/or subtract them.
Yes you have to add with the same denominator. when ever you do fractions they have to have the same denominator no matter what. So thats a yes
it stay the same when you subtract fractions and when you add fractions.
In fractions, you can NEVER add or subtract
Fractions! Otherwise you don't have anything to add.
Change them into mixed numbers and add the integers and fractions together ensuring that the fractions have a common denominator.
No.
So its easier to add subtract or most commonly multiply
convert the fractions so the denominators are the same if they aren't already. then add the numerators, but keep the denominator the same.
If the denominators are not the same, then you have to use equivalent fractions which do have a common denominator . To do this, you need to find the least common multiple (LCM) of the two denominators. To add fractions with unlike denominators, rename the fractions with a common denominator. Then add and simplify.
so, if you have 1/3 plus 2/3 you just add the denominadeters so it would be 3/3
no