Question

1/3-1/2= 2/5-3/4= -7/9-1/2=

Answer 1

1/3 -1/2 = -1/6
2/5 - 3/4 = -7/20
-7/9 - 1/2 = -23/18 = 1   5/18

Answer 2

Let's solve each of these equations step by step:

1. $\frac{1}{3} - \frac{1}{2}$ To subtract fractions, we need a common denominator. The common denominator here is 6.

$\frac{1}{3} - \frac{1}{2} = \frac{2}{6} - \frac{3}{6} = \frac{2-3}{6} = \frac{-1}{6}$

So, $\frac{1}{3} - \frac{1}{2} = \frac{-1}{6}$.

2. $\frac{2}{5} - \frac{3}{4}$ To subtract fractions, we need a common denominator. The common denominator here is 20.

$\frac{2}{5} - \frac{3}{4} = \frac{8}{20} - \frac{15}{20} = \frac{8-15}{20} = \frac{-7}{20}$

So, $\frac{2}{5} - \frac{3}{4} = \frac{-7}{20}$.

3. $\frac{-7}{9} - \frac{1}{2}$ To subtract fractions, we need a common denominator. The common denominator here is 18.

$\frac{-7}{9} - \frac{1}{2} = \frac{-14}{18} - \frac{9}{18} = \frac{-14-9}{18} = \frac{-23}{18}$

So, $\frac{-7}{9} - \frac{1}{2} = \frac{-23}{18}$.