Question

помогите пж пжпжпжпжпж​

Answer 1

Ответ:

1. 3 1/5 + 6 2/5 = (3+6) + (1/5 + 2/5) = 9 + 3/5 = 9 3/5
2. 7 3/8 + 8 1/8 = (7+8) + (3/8+1/8) = 15 4/8, сокр 4 и 8 на 4 получ. 1/2 ⇒ 15 1/2
3. 16 1/9 + 5 1/9 = (16+5) + (1/9+1/9) = 21 + 2/9 = 21 2/9
4. 21 5/14 + 12 3/14 = (21+12) + (5/14+3/14) = 33 + 8/14 (сокр. на 2, получ. 4 и 7) ⇒ 33+4/7 = 33 4/7
5. 8 + 4 2/3 = 8 + 4 + 2/3 = 12 + 2/3 = 12 2/3.
6. 19 3/11 + 6/11 = 19 9/11.