Respuesta :
Well theoretically speaking you could but that would take a long time and 15 and 30 have a common factor of 5 and 15. So I think for this one you can't since there are two common factors.
Answer with explanation:
We have to write ,15 and 30 as a multiple of sum of whole numbers with no common factor.
→15= 13+2----13 and 2 are both prime that is no factor other than 1 and itself.
→30=13 +17---13 and 17 are both prime that is no factor other than 1 and itself.