👤

calculează, aducând la același numitor: a) 2/3 + 5/2 b) 7/8 - 7/9 c) 1/6 + 4/30 + 1/4 d) 23/24 - 1/48 - 1/6 e) 5/18 - 2/9 + 1/3 f) 11/36 - 2/9 - 1/12 g) 7/5 + 1 1/2 + 5/20 - 2 1/4 h) 6 1/4 + 5 2/3 + 1 17/24 va roggg e urgenttt​

Răspuns :