Question

Express the following mixed fractions as improper fractions:
$$12\dfrac{ 7}{11}$$

Answer 1

$$12\dfrac{ 7}{11}$$
It can be written as
$$= \left(12 \times 11 + 7\right)/11$$
By further calculation
$$= \left(132 + 7\right)/11$$
$$= 139/11$$