Answer
Check Explanation
Explanation
The key to adding or subtracting fractions with different denominators is to express the fractions in a form where the two denominators have the same value using Lowest Common Multiple (LCM)
Question 1
[tex]\frac{3}{4}+\frac{2}{5}=\frac{15}{20}+\frac{8}{20}=\frac{15+8}{20}=\frac{23}{20}[/tex]
Question 2
[tex]1+\frac{9}{5}=\frac{5}{5}+\frac{9}{5}=\frac{5+9}{5}=\frac{14}{5}[/tex]
Question 3
[tex]\frac{13}{7}+\frac{3}{2}=\frac{26}{14}+\frac{21}{14}=\frac{26+21}{14}=\frac{45}{14}[/tex]
Question 4
[tex]\frac{5}{8}-\frac{1}{7}=\frac{35}{56}-\frac{8}{56}=\frac{35-8}{56}=\frac{27}{56}[/tex]
Hope this Helps!!!
