Learning Task 1. Find the least common denominators of the following expressions: 1. 1/2 + 3/4 3. 2/x - x+1/5 2. 4. 2/x-3 + x/2 1/x + x/2

(1) 4(2) x(3) 2 (-3 + x)(4) 2 (-3 + x)