How do you subtract #2\frac { 1} { 2} - \frac { 4} { 5}#?

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Answer 1 · 2018-03-09T00:55:26

#1 7/10#

First, find the least common denominator between #2# and #5 -> 10#

# 2 1/2 - 4/5 #

#= 2 5/10 - 8/10#

Then convert the #2# into the fraction to make an improper fraction

# 2 = 20/10#

So

#25/10 - 8/10#

#= 17/10 = 1 7/10#

Answer 2 · 2018-03-09T14:53:09

#1 7/10#

#2 1/2-4/5#

#:.=5/2-4/5#

#:.=(25-8)/10#

#:.=17/10#

#:.=1 7/10#