Respuesta :

sqdancefan

Answer:

  6(5 +13) = 108

Step-by-step explanation:

The GCF can be found by considering the factoring of the two numbers:

  30 = 2·3·5

  78 = 2·3·13

The greatest common factor is 2·3 = 6. Then the sum is ...

  30 +78 = 6(5 +13) = 6(18) = 108