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Kenley Becker
Mathematics
5 May, 16:33
Evaluate (-2 4/5) - (-1 5/6)
+4
Answers (
1
)
Xzavier Gaines
5 May, 16:53
0
(-29) / 30
Step-by-step explanation:
Simplify the following:
- (2 + 4/5) + (1 + 5/6)
Put 2 + 4/5 over the common denominator 5. 2 + 4/5 = (5*2) / 5 + 4/5:
- (5*2) / 5 + 4/5 + 1 + 5/6
5*2 = 10:
- (10/5 + 4/5) + 1 + 5/6
10/5 + 4/5 = (10 + 4) / 5:
- (10 + 4) / 5 + 1 + 5/6
10 + 4 = 14:
-14/5 + 1 + 5/6
Put (-14) / 5 + 1 + 5/6 over the common denominator 30. (-14) / 5 + 1 + 5/6 = (6 (-14)) / 30 + 30/30 + (5*5) / 30:
(6 (-14)) / 30 + 30/30 + (5*5) / 30
6 (-14) = - 84:
(-84) / 30 + 30/30 + (5*5) / 30
5*5 = 25:
(-84) / 30 + 30/30 + 25/30
-84/30 + 30/30 + 25/30 = (-84 + 30 + 25) / 30:
(-84 + 30 + 25) / 30
| 3 | 0
+ | 2 | 5
| 5 | 5:
(55 - 84) / 30
55 - 84 = - (84 - 55):
( - (84 - 55)) / 30
| 7 | 14
| 8 | 4
- | 5 | 5
| 2 | 9:
Answer: (-29) / 30
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