Work out $8\frac{1}{100}+9\frac{3}{100}$81100+93100.
Work out $6\frac{2}{4}-2\frac{1}{4}$624−214.
Find the value of $4\frac{1}{3}+\frac{1}{3}$413+13.
Find the value of $5\frac{2}{3}-\frac{1}{3}$523−13.
Understand a fraction a/b with a > 1 as a sum of fractions 1/b. For example, 4/5 = 1/5 +1/5 + 1/5 + 1/5.