FerSilva2403 24/04/2022 Ab/cd=ef/gh12 - cd/cd = 7/21 >>> cd = 9 ab + cd = 12 ab = 12 - cd ab = 12 - 9 =>> 3
FerSilva2403
Ab/cd=ef/gh
12 - cd/cd = 7/21 >>> cd = 9 ab + cd = 12
ab = 12 - cd
ab = 12 - 9 =>> 3