Log in to add a comment

## Answers

### This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.

There are 4 easy steps to add dissimilar fractions:

Step 1. Find the LCM of each denominator.

For example:

5/6 + 3/7 = ?

6= 6, 12, 18, 24, 30, 36, 42

7= 7, 14, 21, 28, 35, 42

So, their LCM is 42 which we will turn it into the denominator of the answer.

Step 2. Multiply the numerator with the number of the multiples.

For example:

6= 6, 12, 18, 24, 30, 36, 42

7= 7, 14, 21,28, 35, 42

5×7= 35

3×6= 18

Therefore.... we have: 35/42 and 18/42.

Step 3. Add the following (You can add it easily now because it's similar fractions)

For example:

35/42 + 18/42= 73/42 ← answer

Step 4. Simplify OR divide the answer and there, you have the real answer.

Step 1. Find the LCM of each denominator.

For example:

5/6 + 3/7 = ?

6= 6, 12, 18, 24, 30, 36, 42

7= 7, 14, 21, 28, 35, 42

So, their LCM is 42 which we will turn it into the denominator of the answer.

Step 2. Multiply the numerator with the number of the multiples.

For example:

6= 6, 12, 18, 24, 30, 36, 42

7= 7, 14, 21,28, 35, 42

5×7= 35

3×6= 18

Therefore.... we have: 35/42 and 18/42.

Step 3. Add the following (You can add it easily now because it's similar fractions)

For example:

35/42 + 18/42= 73/42 ← answer

Step 4. Simplify OR divide the answer and there, you have the real answer.

7/10 + 4/7

Step 1: Multiply the denominators together.

10 x 7 = 70

It will be your denominator.

Step 2: Cross multiply. Multiply the numerator of the first fraction by the denominator of the second fraction. Multiply the denominator of the first fraction by the numerator of the second fraction.

7 x 7 = 49

10 x 4 = 40

Step 3: Summing Up! Add the products together after you cross multiplied.

49 + 40 = 89

Step 4: Bring back the product in step 1 which is 70.

The answer is 89/70

Step 5: Simplify.

89/70 as a mixed number is 1 19/70