Cotton gin- Eli Whitney
iron plow- Jethro Wood
steel plow- Oliver
reaping machine- Cyrus McCormick
clothing factory- Francis Lowell
sewing machine- Elias Howe
Hope that helped :)
I assume your talking about fractions so
Find a common factor of the numerator and denominator.
Divide both the numerator and denominator by the common factor.
Repeat this process until there are no more common factors.
The fraction is simplified when no more common factors exist.
It began after the stock market crash of October 1929, which sent Wall Street into a panic and wiped out millions of investors. Over the next several years, consumer spending and investment dropped, causing steep declines in industrial output and employment as failing companies laid off workers.