pasagot po pls brainliest kopo pag tama sagot nyo dapat di po mali please

Answer:
1. 4/5=N/15 (N=12)
2. 7/N =42/36 (N=6)
3. 3/N =12/36 (N=6)
4. N/7 = 21/49 (N=3)
Step-by-step explanation:
Find The Simplest Form of the given fraction to Learn the value of the unknown (n)