2. (2/15) + (2/5)=8/15

3. (3/5) / (9/4)=27/20

Fractions may have numerators and denominators that are composite numbers (numbers that has more factors than 1 and itself).

To simplify a fraction:

Find a common factor of the numerator and denominator. A common factor is a number that will divide into both numbers evenly. Two is a common factor of 4 and 14.

Divide both the numerator and denominator by the common factor.

Repeat this process until there are no more common factors.

The fraction is simplified when no more common factors exist.

OR

Find the Greatest Common Factor of the numerator and denominator

Divide the numerator and the denominator by the Greatest Common Factor

1.) write the problem out, pick one numerator and one denominator that have one common factor and divide them by the common factor. repeat until unrepeatable. (?) you should get 7/2, or if you want a mixed number it’s 3 1/2.

2.) 2/15 + 2/5 = 2/15 + 6/15 = 8/15.

3.) 3/5 / 4/9 = 3/5 x 9/4 = 12/45. numerator + denominator can be divided by 3, so the simplest form is 4/15.