Operations of fractions

Question 1

What is the first step when Adding or Subtracting fractions?

Answer 1

Find common denomintator

Question 2

How do you find a common denominator?

Answer 2

Multiply denominators
( works every time)

Question 3

What must you do to numerators?

Answer 3

You must multiply the top by what you multiplied the bottom by.

ex. 2/18 + 6/ 7

you multiply both 2 and 18 by 7 and both 6 and 7 by 18

Question 4

What do you do once you have found a common denominator and have multiplied the numerators?

Answer 4

You follow the order of operations and then simply a fraction

Question 5

What is the first step in dividing a mixed fraction

Answer 5

Turn into improper fractions

Question 6

How do you turn mixed numbers into improper fractions?

Answer 6

Step one: multiply the denominator by the whole number.

Step two: Then add the result to the numerator

Question 7

How do you divide improper fractions?

Answer 7

Use KCF
K = keep
C = change
F = flip

ex 17/12 divided by 3/2 would now be

17/12 (keep) x ( changed from divide) 2/3 (flipped)

Question 8

How do you simplify if both are even?

Answer 8

Divide both by 2