Question

120dollars divided by 3:5

Answer 1

well, split to a ratio of 3 : 5.

well, we simply grab the whole amount and divide it by the sum of the ratios, namely we grab $120 and divide it by (3 + 5) and distribute accordingly

`3~~ : ~~5\implies 3\cdot (120)/(3+5)~~ : ~~5\cdot (120)/(3+5)\implies 3\cdot (120)/(8)~~ : ~~5\cdot (120)/(8) \\\\\\ 3\cdot 15~~ : ~~5\cdot 15\implies 45~~ : ~~75`