Find two mixed numbers so that the sum is 15/3 tenths and the difference is 8/5tenths

Answer 1

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If the 1st mixed number be x
And the second be y

x+y=15 3/10.........(1)
x-y=8 5/10........(2)

Add 1&2

2x=153/10+85/10

2x=2(119/10)

X=119/10=11 9/10

Y=153/10-119/10

Y=34/10=17/5=3 2/5