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## Sagot :

**Answer:**

**1. **[tex]-1 \frac{1}{4}[/tex]

**2. **[tex]1 \frac{11}{20}[/tex]

**Step-by-step explanation:**

-1 3/4 - (-1/2) = -1 1/4

-1/5 + 1 3/4 = 1 11/20