Araujo studied mathematics at the National Autonomous University of Mexico (UNAM), where she completed her Ph.D. in 2000.

Her dissertation, Daisy Structure in Desarguesian Projective Planes, was supervised by Luis Montejano Peimbert.

[1] She has worked for the UNAM Mathematics Institute since 2000, with a postdoctoral research visit to the Polytechnic University of Catalonia in Spain.

[4] In 2013, Araujo won UNAM's Sor Juana Inés de la Cruz 2013 award,[5] and was elected to the Mexican Academy of Sciences.

[6] In collaboration with other members, they funded the Equity and Gender Commission of the SMM in 2013, "to promote the inclusion of underrepresented groups, in particular women, in the mathematical activity of the country".