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Oleg729rus
@Oleg729rus
July 2022
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7 2/15-(4-3 7/15)+2 12/15
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zhenyaM2002
Verified answer
Если по действиям:
7 2/15 -(4-3 7/15) + 2 12/15 = 9 2/5
1) 4 - 3 7/15= 1 - 7/15 = (15-7)/15 =8/15
2) 7 2/15 - 8/15 = 6 + (17- 8)/15= 6 9/15
3) 6 9/15 + 2 12/15 = 8 + 21/15 = 8+ 7/5=
= 8+ 1 2/5 = 9 2/5
Если просто раскрыть скобки:
7 2/15 -4 +3 7/15 +2 12/15 =
=(7-4+3+2) + (2+7+12)/15=
= 8 + 21/15 = 8+ 7/5=
=8+1 2/5 =9 2/5
12 votes
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Answers & Comments
Verified answer
Если по действиям:7 2/15 -(4-3 7/15) + 2 12/15 = 9 2/5
1) 4 - 3 7/15= 1 - 7/15 = (15-7)/15 =8/15
2) 7 2/15 - 8/15 = 6 + (17- 8)/15= 6 9/15
3) 6 9/15 + 2 12/15 = 8 + 21/15 = 8+ 7/5=
= 8+ 1 2/5 = 9 2/5
Если просто раскрыть скобки:
7 2/15 -4 +3 7/15 +2 12/15 =
=(7-4+3+2) + (2+7+12)/15=
= 8 + 21/15 = 8+ 7/5=
=8+1 2/5 =9 2/5