How do you combine like terms to simplify the expression #7/8m + 9/10 - 2m-3/5#?

1 Answer
smendyka
Apr 3, 2017

See the entire solution process below:

Explanation:

First, group like terms:

#7/8m - 2m + 9/10 - 3/5#

Next, put the #m# terms and the constants over common denominators by multiplying by the appropriate form of #1# to allow the terms to be added and subtracted:

#7/8m - (8/8 xx 2m) + 9/10 - (2/2 xx 3/5)#

#7/8m - 16/8m + 9/10 - 6/10#

#(7/8 - 16/8)m + (9/10 - 6/10)#

#-9/8m + 3/10#

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