Question

-1+2 1/9
-4+3 1/2
-5/7+4/7
-5/8+7/8
-1/6+1
5/12-1/12
7/15-11/15
5/16-1/16
-5/6+2/3
-3/4+4/5
-1/2+1/8​

Answer 1

1)

$- 1 + 2 \frac{1}{9} = - 1 + 2 + \frac{1}{9} = ( - 1 + 2) + \frac{1}{9} = 1 + \frac{1}{9} = 1 \frac{1}{9}$

2)

$- 4 + 3 \frac{1}{2} = - 4 + \frac{7}{2} = \frac{ - 8 + 7}{2} = - \frac{1}{2}$

3)

$- \frac{5}{7} + \frac{4}{7} = \frac{ - 5 + 4}{7} = \frac{ - 1}{7} = - \frac{1}{7}$

4)

$- \frac{5}{8} + \frac{7}{8} = \frac{ - 5 + 7}{8} = \frac{2}{8} = \frac{1}{4}$

5)

$- \frac{1}{6} + 1 = \frac{ - 1 + 6}{6} = \frac{5}{6}$

6)

$\frac{5}{12} - \frac{1}{12} = \frac{5 - 1}{12} = \frac{4}{12} = \frac{1}{3}$

7)

$\frac{7}{15} - \frac{11}{15} = \frac{7 - 11}{15} = \frac{ - 4}{15} = - \frac{4}{15}$

8)

$\frac{5}{16 } - \frac{1}{16} = \frac{5 - 1}{16} = \frac{4}{16} = \frac{1 }{4}$

9)

$- \frac{3}{4} + \frac{4}{5} = \frac{ - 15 + 16}{20} = \frac{1}{20}$

10)

$- \frac{1}{2} + \frac{1}{8} = \frac{ - 4 + 1}{8} = \frac{ - 3}{8} = - \frac{3}{8}$