Ответ:
7/12
Пошаговое объяснение:
1) 3 1/4 + 2 1/6 = 3 3/12 + 2 2/12 = 5 5/12
2) 5 5/12 : 2 3/5 = 65/12 : 13/5 = 65/12 * 5/13 = 5/12 * 5/1 = 25/12 = 2 1/12
3) 2/3 : 4/9 = 2/3 * 9/4 = 1/1 * 3/2 = 3/2 = 1 1/2
4) 2 1/12 - 1 1/2 = 2 1/12 - 1 6/12 = 1 13/12 - 1 6/12 = 7/12
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Verified answer
(3 1/4+2 1/6):2 3/5-2/3:4/9=(3 3/12+2 2/12):2 3/5-2/3*9/4= 3/5-2/1 3/4-65/12:13/5-1/1*3/2=65/12*5/13-1/1*3/2=5 5/12:2=5/12*5/1-3/2= 25/12-3/2=25/12-18/12=7/1 2Ответ:
7/12
Пошаговое объяснение:
1) 3 1/4 + 2 1/6 = 3 3/12 + 2 2/12 = 5 5/12
2) 5 5/12 : 2 3/5 = 65/12 : 13/5 = 65/12 * 5/13 = 5/12 * 5/1 = 25/12 = 2 1/12
3) 2/3 : 4/9 = 2/3 * 9/4 = 1/1 * 3/2 = 3/2 = 1 1/2
4) 2 1/12 - 1 1/2 = 2 1/12 - 1 6/12 = 1 13/12 - 1 6/12 = 7/12