распешите

9 2/7+х=52 3/14

х:5 5/8 = 2 1/3

и последний

15 2/3-х=5 5/6

Ответы:

9 2/7+х=52 3/14

65/7+х=731/14

х=731/14-65/7=(731-130)/14=601/14

х=601/14= 42 13/14

х:5 5/8 = 2 1/3

х=2 1/3*5 5/8=7/3*45/8=105/8

х=105/8= 13 1/8

15 2/3-х=5 5/6

47/3-х=35/6

х=47/3-35/6= (94-35)/6=59/6

х=59/6=9 5/6





х=52 3/14 9 2/7

х =42 5/7

х=2 1/3 *5 5/8

х=13 1/8

х= 15 2/3 5 5/6

х=9 5/6