- 1/3 + 1/4 - 5/12 = - 1/2
1) Приведём дроби к общему знаменателю - 4/12 + 3/12 - 5/12
2) - 4/12 - 5/12 + 3/12 = - 9/12 + 3/12 = - 6/12 = - 1/2
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- 1/3 + 1/4 - 5/12 = - 1/2
1) Приведём дроби к общему знаменателю - 4/12 + 3/12 - 5/12
2) - 4/12 - 5/12 + 3/12 = - 9/12 + 3/12 = - 6/12 = - 1/2