How do you determine which of the fractions #17/20# or #21/25# is greater and by how much?

2 Answers
May 14, 2018

Answer:

#17/20# is greater by #1/100#

Explanation:

Put them over the same denominator using equivalent fractions

#17/20=85/100#

#21/25=84/100#

May 14, 2018

Answer:

#17/20# is bigger than #21/25# by #1/100#

Explanation:

Subtract the fractions.
If you get a positive answer the first one is bigger, if you get a negative answer, the second one is bigger.

To subtract them you need the LCD which is #100# in this case.

#17/20-21/25#

# = (85-84)/100#

#=1/100#

#:. 17/20# is bigger than #21/25# by #1/100#