Question #11e1d

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Answer 1 · 2017-12-04T16:06:42

#2#

#3/2-3/10+4/5#

#10# is the LCM of all the denominators, so get the LCM

#(3xx5)/(2xx5) - 3/10 +(4xx2)/(5xx2)#

#15/10-3/10+8/10#

You get

#(15-3+8)/10#

#(12+8)/10#

#20/10#

#=2#