How do you add and subtract fractions with unlike denominators?

How do you add and subtract fractions with unlike denominators?

Adding and Subtracting Fractions with Unlike Denominators

1. STEP ONE: Get a common denominator.
2. STEP TWO: Add or subtract the numerators.
3. STEP THREE: Simplify the result if needed. Notice that 3/27 can be simplified, since the numerator and denominator are both divisible by 3.
4. And that’s all there is to it! Final Answer:

How do you add improper fractions and proper fractions?

Note: The rules for adding and subtracting improper fractions are the same as working with proper fractions. Step 1: Keep the denominator the same. Step 2: Add or subtract the numerators. Step 3: If the answer is an improper form, reduce the fraction into a mixed number.

How do you subtract unequal fractions?

To use the traditional way to subtract fractions with two different denominators, follow these steps:

1. Find the least common multiple (LCM) of the two denominators.
2. Increase each fraction to higher terms so that the denominator of each equals the LCM.
3. Substitute these two new fractions for the original ones and subtract.

How do you explain adding and subtracting fractions?

Explain Adding and Subtracting Fractions Adding or subtracting like fractions — fractions with the same denominator — is easy. Just add or subtract the numerators, and write the sum or difference over the common denominator.

How do you subtract fractions step by step?

There are 3 simple steps to subtract fractions. Step 1. Make sure the bottom numbers (the denominators) are the same Step 2. Subtract the top numbers (the numerators). Put the answer over the same denominator. Step 3. Simplify the fraction (if needed).

How do you add subtract fractions?

Adding and Subtracting Fractions with Different Denominators Find the lowest common denominator. Multiply the denominator by the number needed to get the LCD. Multiple the numerator by that number, too. Add (or subtract) the numerators to get your answer.

What is adding and subtracting fractions?

Add and subtract fractions with unlike denominators (including mixed numbers) by replacing given fractions with equivalent fractions in such a way as to produce an equivalent sum or difference of fractions with like denominators. For example, 2/3 + 5/4 = 8/12 + 15/12 = 23/12.