Предмет: Математика, автор: соонышко1

решите срочно пож.563 номер 4 зад.

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Ответы

Автор ответа: 123451206
0
решаем сначала то, что в скобках
4 6/10(сократим 6/10, то есть разделим и числитель и знаменатель на 2, 3/5)
-4 3/5+3 4/7= общий знаменатель чисел 5 и 7 это число 35
-4 целых 7×3+ 3 целых 5×4=-4 21/35+ 3 20/35= -1 1/35
х -(-1 1/35)=-8 1/14
х+ 1 1/35=-8 1/14
х= -8 1/14- 1 1/35= общий знаменатель 350
-8 25/350 - 1 10/350=-9 35/350=-9 1/10=-9,1
ну как-то так

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