Fractions can be represented by shading parts of a rectangular region
The simplified expressions are:
- [tex]\frac 28 + \frac 24 = \frac 34[/tex].
- [tex]\frac 9{10} - \frac 35 =\frac{2}{5}[/tex].
- [tex]\frac 46 -\frac{2}{6}=\frac{2}{6}[/tex].
- [tex]-\frac{2}{12} + \frac 26 = \frac{2}{12}[/tex].
- [tex]\frac{9}{18} - \frac{3}{9} = \frac{1}{6}[/tex]
Complete number sentence
To start with, we simplify the fraction expressions as follows:
(1) [tex]\frac 28 + \frac 24 =[/tex]
Take LCM
[tex]\frac 28 + \frac 24 = \frac{2 + 4}8[/tex]
[tex]\frac 28 + \frac 24 = \frac{6}8[/tex]
Simplify
[tex]\frac 28 + \frac 24 = \frac 34[/tex]
(2) [tex]\frac 9{10} - \frac 35 =[/tex]
Take LCM
[tex]\frac 9{10} - \frac 35 =\frac{9 - 6}{10}[/tex]
[tex]\frac 9{10} - \frac 35 =\frac{4}{10}[/tex]
Simplify
[tex]\frac 9{10} - \frac 35 =\frac{2}{5}[/tex]
(3) [tex]\frac 46 - [\ ]=\frac{2}{6}[/tex]
Replace the blank with x
[tex]\frac 46 -x=\frac{2}{6}[/tex]
Collect like terms
[tex]x = \frac 46 -\frac{2}{6}[/tex]
Take LCM
[tex]x = \frac{4 - 2}{6}[/tex]
[tex]x = \frac{2}{6}[/tex]
Simplify
[tex]x = \frac{1}{3}[/tex]
(4) [tex]\frac{}{12} + \frac 26 = \frac{2}{12}[/tex]
Replace the blank with x
[tex]\frac{x}{12} + \frac 26 = \frac{2}{12}[/tex]
Collect like terms
[tex]\frac{x}{12} = \frac{2}{12} -\frac 26[/tex]
Take LCM
[tex]\frac{x}{12} = \frac{2 - 4}{12}[/tex]
[tex]\frac{x}{12} = -\frac{2}{12}[/tex]
Multiply both sides by 12
[tex]x=-2[/tex]
(5) [tex]\frac{9}{18} - \frac{3}{9}[/tex]
Take LCM
[tex]\frac{9}{18} - \frac{3}{9} = \frac{9 - 6}{18}[/tex]
[tex]\frac{9}{18} - \frac{3}{9} = \frac{3}{18}[/tex]
Reduce fraction
[tex]\frac{9}{18} - \frac{3}{9} = \frac{1}{6}[/tex]
Missing fractions
So, the simplified expressions that contain the missing fractions are:
- [tex]\frac 28 + \frac 24 = \frac 34[/tex].
- [tex]\frac 9{10} - \frac 35 =\frac{2}{5}[/tex].
- [tex]\frac 46 -\frac{2}{6}=\frac{2}{6}[/tex].
- [tex]-\frac{2}{12} + \frac 26 = \frac{2}{12}[/tex].
- [tex]\frac{9}{18} - \frac{3}{9} = \frac{1}{6}[/tex]
Shaded regions
See attachment for the shaded regions
Read more about fractions at:
https://brainly.com/question/5243429