Complex sentence: In 1946, at the age of eighteen, she was awarded a Ph.B with honors in chemistry with minors in physics and mathematics and an extension until August 1947 to complete some of the course work.
Split into simpler sentences: In 1946, at the age of eighteen, she was awarded a Ph.B with honors in chemistry with minors in physics and mathematics. She was also granted an extension until August 1947 to complete some of her course work.