# Fraction Addition and Subtraction: Difficult Problems with Solutions

Problem 1
Calculate $$\frac{1}{15}+\frac{4}{5}$$
Problem 2
Determine the value of $$\frac{1}{2}+\frac{1}{4}+\frac{1}{8}$$
Problem 3
Evaluate $$\frac{3}{9}+\frac{9}{27}$$
Problem 4
Calculate $$\frac{2}{3}+\frac{5}{12}$$
Problem 5
Determine the value of $$\frac{1}{2}+\frac{5}{14}$$
Problem 6
Find the value of $$\frac{5}{21}+\frac{1}{3}$$
Problem 7
Add the fractions $$\frac{2}{7}$$ and $$\frac{13}{28}$$
Problem 8
Find the sum of $$\frac{15}{25}$$ and $$\frac{8}{15}$$
Problem 9
Calculate $$\frac{5}{21}-\frac{1}{7}$$
Problem 10
Evaluate $$\frac{2}{14}+\frac{5}{21}$$

Problem 11
Determine the value of $$\frac{5}{13}+\frac{3}{26}$$
Problem 12
Calculate the sum of fractions: $$\frac{52}{77}+\frac{2}{11}$$
Problem 13
Find the value of $$\frac{18}{65}+\frac{7}{13}$$
Problem 14
Evaluate $$\frac{5}{74}-\frac{2}{37}$$
Problem 15
Subtract $$\frac{13}{14}$$ from $$\frac{33}{28}$$
Problem 16
Sum the fractions $$\frac{1}{2}+\frac{1}{3}+\frac{7}{6}$$
Problem 17
Determine the value of $$\frac{5}{16}+\frac{7}{14}$$
Problem 18
Calculate $$\frac{28}{35}+\frac{63}{15}$$
Problem 19
Evaluate $$\frac{18}{24}+\frac{23}{53}$$
Problem 20
Determine the value of $$\frac{19}{51}+\frac{11}{17}$$
Problem 21
Calculate $$\frac{349}{23}-\frac{234}{23}$$
Problem 22
Subtract $$\frac{15}{67}$$ from $$\frac{137}{134}$$
Problem 23
Evaluate $$\frac{1}{11}-\frac{2}{11}+\frac{3}{11}-\frac{4}{11}+\frac{5}{11}$$
Problem 24
Calculate $$\frac{5}{18}-\frac{2}{9}+\frac{7}{36}$$
Problem 25
Subtract the fractions $$\frac{234}{165}-\frac{124}{165}$$
Problem 26
If $$\frac{1}{4}$$ of the ghosts in a castle are friendly and $$\frac{3}{5}$$ of them are unfrendly. What fraction of the ghost are neither friendly or unfriendly?

Correct:
Wrong:
Unsolved problems:
Contact email: