Question

7 satu per 2 + 2 satu perlima - 3empat perlima????
tolong yakk

Answer 1

7 1/2 + 2 1/5 - 3 4/5
15/2 + 11/5 - 19/5
75/10 + 22/10 - 38/10
135/10
13,5

Answer 2

7 1/2 + 2 1/5 - 3 4/5
= (14/2 +1/2) + (10/5 + 1/5) - (15/5 + 4/5)
= 15/2 + 11/5 - 19/5 (samakan penyebutnya)
= 75/10 + 22/10 - 38/10
= 97/10 - 38/10
= 59/10
= 5,9