Subtract &1/21from (-2/7+-1/42)
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Step-by-step explanation:
- (-2/7-1/42)
- -12-1/42=. -13/42
- Substract1/21from-13/42
- 1/21-(-13/42)
- 1/21+13/42
- 2+13/42
- 15/42=5/4
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