Adding and Subtracting Fractions with Unlike denominator

Is this the correct answer? 3/7 + 2/5= 5/12

• Yes

• No

What's the first step in finding the answer for adding or subtracting fraction with different denominator?

• Add denominators

• Add numerations

• Find the Least common multiple for the denominators

• None of the above

What's the least common multiple for:

1/3 + 2/6=

• 5

• 3

• 6

• 4

1/4 - 1/3=

• 8

• 12

• 14

• 4

7/2+1/5=

• 9

• 5

• 20

• 10

If we have 6+1/4. What's our first two steps to find the answer?

• Rewrite then add the numerator

• Add the numerator then the denominator

• Turn the whole number into a fraction by putting it over one then add the numerator and then the denominators.

• Turn the whole number into a fraction by putting it over one then find the Least common multiple.

Solve the following:

8/9-2/3=

• 2/3

• 4/18

• 2/9

• 
  

  $2_9^2$

2/4+6/2=

• $3_4^2$

• 2/9

• 4/14

• 2/8

7+3/8=

• 3/8

• 4/2

• $7_8^3$

• 4/8

4-5/10

• 35/10

• $3_{10}^2$

• 4/5

• 1/2