Question

add 2a+b+3c and a+1/3b+2/5c

Answer 1

Answer:

A + B = 3a + (4/3)b + (17/5)c  

Step-by-step explanation:

Since we given two expressions

Let

A = 2a + b + 3c

B = a + (1/3)b + (2/5)c

And according to equation we have to find sum

So

A + B = ( 2a + b + 3c ) + ( a + (1/3)b + (2/5)c)

         = 2a + a + b + (1/3)b + 3c + (2/5)c     ∵ Arranging like terms

         = 3a + (1 + (1/3))b + (3 + (2/5))c          ∵  Taking b and c common

         = 3a + (3/3 + 1/3)b + (15/5 + 2/5)c       ∵ Making denominator same

         = 3a + (4/3)b + (17/5)c                  ∵ Adding

Hence

A + B = 3a + (4/3)b + (17/5)c