(+3.3/7+(-2.1/14))+(-3.1/2)

Question

(+3.3/7+(-2.1/14))+(-3.1/2)

Answer 1

3ц 3\7 + [ - 2ц 1\14]=3ц 6\14 + [ - 2ц 1\14]=1 ц5\14
1ц 5\14 + [ - 3ц 1\2] =1ц 5\14 +[- 3 ц7\14 ] = - [3 ц7\14 - 1ц 5\14] = -2ц 2\14 = - 2 ц1\7
ответ= - 2ц 1\7

Comments

Спасибо!!