To write 1 3 1 3 as a fraction with a common denominator, multiply by 3 3 3 3 . − 2 9 − 1 3 ⋅ 3 3 - 2 9 - 1 3 ⋅ 3 3 Write each expression with a common denominator of 9 9 , by multiplying each by an appropriate factor of 1 1 . Tap for more steps... − 2 9 − 1 ⋅ 3 9 - 2 9 - 1 ⋅ 3 9 Combine the numerators over the common denominator. − 2 − 1 ⋅ 3 9 - 2 - 1 ⋅ 3 9 Simplify the numerator.
− 5 9 - 5 9 Move the negative in front of the fraction.