Ответ:
1) -15,2
2) 7 65/72
Пошаговое объяснение:
1) - 12,5-6,9+4 1/5= -19,4+ 21/5=-19,4+42/10= - 19,4 + 4,2= - 15,2
2) ( - 11/9 + 16/3) - (29/8 - 89/12) = ( - 11/9+ 48/9) - (87/24 - 178/24) = 37/9 - ( - 91/24) = 37/9 + 91/24 = 296/72 + 273/72 = 569/72 = 7 65/72
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Verified answer
Ответ:
1) -15,2
2) 7 65/72
Пошаговое объяснение:
1) - 12,5-6,9+4 1/5= -19,4+ 21/5=-19,4+42/10= - 19,4 + 4,2= - 15,2
2) ( - 11/9 + 16/3) - (29/8 - 89/12) = ( - 11/9+ 48/9) - (87/24 - 178/24) = 37/9 - ( - 91/24) = 37/9 + 91/24 = 296/72 + 273/72 = 569/72 = 7 65/72