31. 5/6
Пошаговое объяснение:
1) 9. 1/4 * 8 = 37/4 * 8 =
37/1 * 2 = 74/1 = 74
2) 12/3 * 5. 1/2 = 4 * 11/2 =
44/2 = 22
3) 4. 2/5 * 4. 7/12 = 22/5 * 55/12 = 11/1 * 11/6 = 121/6 = 20. 1/6
4) 74 - 22 = 52
5) 52 - 20. 1/6 =
51. 6/6 - 20. 1/6 = 31. 5/6
ответ: 31 5/6.
9 1/4 * 8 - 12/3 * 5 1/2 - 4 2/5 * 4 7/12= 31 5/6.
1) 9 1/4 * 8= 37/4 *8=74;
2) 12/3 * 5 1/2 = 12/3 * 11/2= 22;
3) 4 2/5 * 4 7/12 = 22/5 * 55/12= 121/6;
4) 74-22-121/6=52 -20 1/6 =191/6= 31 5/6.
31. 5/6
Пошаговое объяснение:
1) 9. 1/4 * 8 = 37/4 * 8 =
37/1 * 2 = 74/1 = 74
2) 12/3 * 5. 1/2 = 4 * 11/2 =
44/2 = 22
3) 4. 2/5 * 4. 7/12 = 22/5 * 55/12 = 11/1 * 11/6 = 121/6 = 20. 1/6
4) 74 - 22 = 52
5) 52 - 20. 1/6 =
51. 6/6 - 20. 1/6 = 31. 5/6
ответ: 31 5/6.
Пошаговое объяснение:
9 1/4 * 8 - 12/3 * 5 1/2 - 4 2/5 * 4 7/12= 31 5/6.
1) 9 1/4 * 8= 37/4 *8=74;
2) 12/3 * 5 1/2 = 12/3 * 11/2= 22;
3) 4 2/5 * 4 7/12 = 22/5 * 55/12= 121/6;
4) 74-22-121/6=52 -20 1/6 =191/6= 31 5/6.