Verified answer

Ответ:

1 1/3×4=4/3×4/1=16/3=5 1/3

7 2/3×6=23/3×6=138/3=46/1=46

8×3 1/4=8×13/4=8/1×13/4=2/1×13/1=2×13=26

21 2/9×9=191/9×9=191/9×9/1=191

2 3/4×5/6=11/4×5/6=55/24=2 7/24

7/13×5 1/5=7/13×26/5=7/1×2/5=14/5=2 4/5

8/17 ×3 2/5=8/17×17/5=8/1×1/5=8/5=1 3/5

3/5× 1 5/6=3/5×11/6=1/5×11/2=11/10=1 1/10

3 1/2×4 2/3= 121/3

12 1/3× 1/5=12 1/5

9/50×27/18=1/50×27/2=27/50

1 5/7× 14/36= 12/7×14/36=1/1×2/3=2/3

Пошаговое объяснение:

надеюсь понятно

Пошаговое объяснение:

1 1/3 * 4 = 4/3 * 4 = 16/3 = 5 1/3

7 2/3 * 6 = 23/3 * 6 = 23/1 * 2 = 46/1 = 46

8 * 3 1/4 = 8 * 13/4 = 2 * 13/1 = 26/1 = 26

21 2/9 * 9 = 191/9 * 9 = 191/1 * 1 = 191/1 = 191

2 3/4 * 5/6 = 11/4 * 5/6 = 55/24 = 2 7/24

7/13 * 5 1/5 = 7/13 * 26/5 = 7/1 * 2/5 = 14/5 = 2 4/5

8/17 * 3 2/5 = 8/17 * 17/5 = 8/1 * 1/5 = 8/5 = 1 3/5

3/5 * 1 5/6 = 3/5 * 11/6 = 33/30 = 11/10 = 1 1/10

3 1/2 * 4 2/3 = 7/2 * 14/3 = 7/1 * 7/3 = 49/3 = 16 1/3

12 1/3 * 1/5 = 37/3 * 1/5 = 37/15 = 2 7/15

9/50 * 27/18 = 1/50 * 27/2 = 27/100

1 5/7 * 14/36 = 12/7 * 14/36 = 1/1 * 2/3 = 2/3