Frangi was born in Milan, Italy, where continues to live and work. He is associated with the Galleria Arte Structura there. He was educated at L’Accademia di Brera, where he taught art and architecture. Frangi has been involved with MADI since 1990. In 1991 he co-founded the Italian contingent of MADI International. He has exhibited in Italy, Czechoslovakia, Switzerland, France, Spain, Belgium, and at the Museum of Geometric and MADI Art in Dallas, Texas.