40 is what percent of 50?

1 Answer
Jun 24, 2016

Answer:

#40/50xx100=80%#

Explanation:

#x# is the numerator = 40

#y# is the denominator = 50

#z# is the numerator as a percentage of the denominator = 80%

The algebra:

Divide #x# by #y# to get #z/100#

#x/y=z/100#

Multiply #z/100# by 100 to get #z#

#z/100xx100=z#

How it works:

#40/50=80/100=0.8#

#80/100xx100=0.8xx100=80#

40 is 80% of 50.