Bringing fractions to a common denominator
Answers are for parents and teachers.
1
Find the common denominator of 5/(6x²) and 1/(9xy).
18x²y
2
Bring 3/(a + 2) and 4/(a² - 4) to a common denominator.
3(a - 2)/(a² - 4) and 4/(a² - 4)
3
Find the common denominator of 2/(x² - x) and 5/(x - 1).
x(x - 1)
4
Write 1/(m - n) and 2/(n - m) as fractions with denominator m - n.
1/(m - n) and -2/(m - n)
5
Bring x/(x + y) to the denominator (x + y)(x - y).
x(x - y)/((x + y)(x - y))