Solve: Adding Fractions 3/5 + 2/7 Step by Step

Question

35+27= \frac{3}{5}+\frac{2}{7}=

Video Solution

Solution Steps

00:00 Solve
00:03 We want to find the least common denominator
00:06 Multiply each fraction by the other denominator to find the common denominator
00:09 Remember to multiply both numerator and denominator
00:27 Calculate the multiplications
00:36 Add under the common denominator
00:41 Calculate the numerator
00:45 And this is the solution to the question

Step-by-Step Solution

To solve the given problem, we will follow these steps:

  • Step 1: Determine a common denominator for the fractions.
  • Step 2: Convert each fraction to have the common denominator.
  • Step 3: Add the numerators and keep the common denominator.
  • Step 4: Simplify the resulting fraction if possible.

Let's proceed with each step:

Step 1: Determine a common denominator.
The denominators of the fractions are 5 and 7. The least common multiple (LCM) of 5 and 7 is 35. Thus, the common denominator is 35.

Step 2: Convert each fraction to have the common denominator of 35.
Convert 35\frac{3}{5} to a fraction with a denominator of 35: 35=3×75×7=2135 \frac{3}{5} = \frac{3 \times 7}{5 \times 7} = \frac{21}{35} .
Convert 27\frac{2}{7} to a fraction with a denominator of 35: 27=2×57×5=1035 \frac{2}{7} = \frac{2 \times 5}{7 \times 5} = \frac{10}{35} .

Step 3: Add the numerators and use the common denominator.
Now add the fractions: 2135+1035=21+1035=3135 \frac{21}{35} + \frac{10}{35} = \frac{21+10}{35} = \frac{31}{35} .

Step 4: Simplify the result.
The fraction 3135\frac{31}{35} is already in its simplest form since 31 and 35 have no common factors other than 1.

Therefore, the solution to the problem is 3135 \frac{31}{35} .

Answer

3135 \frac{31}{35}