Try and change them in fractions with same denominators.

Convert in to improper fractions.

Think about how many eighths make a whole.

Try and link the denominators to compare.

Change them all into fractions having common denominator.

Convert in to improper fractions.

Subtract the whole and the fractions separately. Or, converte the mixed numbers into improper fractions.

Change them all into fractions with same denominators.

Add the whole and then the fractions. Or, convert into improper fraction after writing mixed numbers.

Simplify means divide out the common factors.