Henry Briggs, an English mathematician (15611630), developed the method we
commonly use now to do long division. Fractions based on 10's, 100's, etc.
were used in the Indus Valley more than 4000 years ago. Egyptians used fractions
with ones in the numerators about 4000 years ago. Mathematicians often build on
the work of predecessors. Sure, sometimes a single "genius" develops a totally new
idea, but many times a new idea or new way of doing things is an improvement on an
old one.
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