Explanation:
(3 1/5 + 1 2/5)+ 4 4/5
(16/5+7/5)+24/5
=23/5+24/5
=(23+24)/5
=47/5
=9 2/5 is your answer.
first step
convert mixed fraction into simple fraction
second step
take l.c.m. and add or subtract
third step
convert it again mixed fraction if possible.