Question

Как можно быстре плисс

Answer 1

Ответ:

1)

$4 \frac{11}{20} + 3\frac{3}{20 } =( 4 + 3) + ( \frac{11}{20} + \frac{3}{20}) = 7 \times \frac{7}{10} =7 \frac{7}{10}$

2)

$5 \frac{9}{11} +6 \frac{10}{11} = (5 + 6) + ( \frac{9}{11} + \frac{10}{11} = 12 + \frac{8}{11} = 12 \frac{8}{11}$

3)

$8 \frac{1}{23} + 7\frac{22}{23} - 6 \frac{10}{23} = (8 + 7 - 6) + ( \frac{1}{23} + \frac{22}{23} - \frac{10}{23} = 9 \frac{13}{23}$

$4)10 \frac{3}{28} - (6 \frac{5}{28} + 3 \frac{6}{28} = \frac{283}{28} - \frac{263}{28} = \frac{5}{7}$

Answer 2

Ответ:

Пошаговое объяснение:

4. 11/20 + 3. 3/20 = 7. 14/20 = 7. 7/10

5. 9/11 + 6. 10/11 = 11. 19/11 = 12. 8/11

8. 1/23 + 7. 22/23 - 6. 10/23 =

15. 23/23 - 6. 10/23 = 9. 13/23

10. 3/28 - (6. 5/28 + 3. 6/28) =

10. 3/28 - 9. 11/28 =

9. 31/28 - 9. 11/28 = 20/28 = 5/7