# What are the steps in adding dissimillar fractions?

2
by estellaarnejo

2015-10-15T19:43:18+08:00

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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.

I suggest: Step 2) Multiply the numerator by the number of listed multiples of its denominator. :-)
2015-10-17T09:48:01+08:00
Easier Method:
7/10 + 4/7

Step 1: Multiply the denominators together.
10 x 7 = 70