Was ist 3 8/9 (3 ganze und acht neuntel) dividierd durch 7?

Mathe, doof

Answer 1

[YStoll]

(3 8/9) /7 = (3 + 8/9) /7 = (27/9 + 8/9) /7 = (35/9) /7 = 5/9

Answer 2

[Suboptimierer]

(3 + 8/9)/7 = 3/7 + 8/(9*7) = 27/63 + 8/63 = 35/63 = 5/9

Anderer Weg:

(3 8/9)/7 = ((27+8)/9)/7 = (35/9)/7 = 35/(9*7) = 5/9

Woher ich das weiß: Studium / Ausbildung – Mathematik