Question

Выполните действия: 1)7/12+7/202)3/8+1/183)1/12+11/1282144)2/15+7/128214525)9/14-5/12821452426)19/75+7/50​

Answer 1

Ответ:

1)7/12+7/20=56/50=14/15

2)3/8+1/18=31/72

3)1/12+11/128214=21391/256428

4)...

5)...

6)19/75+7/50=59/150

Прости не смогла 4 и 5 решить.

Answer 2

1. 7/12 + 7/20 = 35/60 + 21/60 = 56/60 = 28/30 = 14/15
2. 3/8 + 1/18 = 27/72 + 4/72 = 31/72
3. 1/12 + 11/1282 = 107/1536 + 143/1536 = 250/1536 = 125/768
4. 2/15 + 7/1282 = 256/3840 + 21/3840 = 277/3840
5. 9/14 - 5/1282 = 1152/1792 - 5/1792 = 1147/1792
6. 19/75 + 7/50 = 760/3000 + 420/3000 = 1180/3000 = 59/150