Question

Answer 1

` 3/5 + 4/3 = 9/15 + 20/15 = (9+20)/15 = 29/15`

`7/2 - 5/3 = 21/6 - 10/6 = (21-10)/6  = 11/6`

` 8/7 - 1/2 = 16/14 - 7/14 = (16-7)/14 = 9/14`

` 9/11 + (-3/5) = 45/55 + (-33/55) =` \(\dfrac{45+\left(-33\right)}{55}\)`= 12/55`

Answer 2

1). \(\dfrac{3}{5}+\dfrac{4}{3}=\dfrac{9}{15}+\dfrac{20}{15}=\dfrac{29}{15}\)

2). \(\dfrac{7}{2}-\dfrac{5}{3}=\dfrac{21}{6}-\dfrac{10}{6}=\dfrac{11}{6}\)

3). \(\dfrac{8}{7}-\dfrac{1}{2}=\dfrac{16}{14}-\dfrac{7}{14}=\dfrac{9}{14}\)

4). \(\dfrac{9}{11}+\dfrac{-3}{5}=\dfrac{45}{55}+\dfrac{-33}{55}=\dfrac{12}{55}\)