Question

7/40 + 11/40 + 13/40 =??
( / - дробь )​

Answer 1

Ответ:

31/40

Пошаговое объяснение:

7/40 +11/40=18/40

18/40+13/40=31/40

Answer 2

31/40

Answer 3

$frac{7}{40} + frac{11}{40} + frac{13}{40} = frac{7 + 11 + 13}{40} = frac{31}{40}$