Răspuns
34
Explicație pas cu pas:
270/63 × ( 3 1/5 + 7 1/15 - 2 1/3 ) =
= 270/63 × ( 16/5 + 105/15 - 7/3 ) =
= 270/63 × ( 48 + 106 - 35/15 ) =
= 270/63 × 119/15 = 18/63 × 119 = 18/9 × 17 = 2 × 17 = 34
