How do I express -20 over 15 as a rational number in lowest terms, I also have to do -12 over -4 and -49 over -7 But I don't understand how to.
$$\frac{-20}{15}$$
Divide top and bottom by 5
$$=\frac{-4}{3}$$
$$=-(\frac{3}{3}+\frac{1}{3})$$
$$=-(1+\frac{1}{3})$$
$$=-1\frac{1}{3}$$
