Add and subtract fractions with different denominators and mixed numbers, using the concept of equivalent fractions

What this means, in plain words

The denominator is the number underneath the line in a fraction. It tells you how many equal parts the whole was split into.

An improper fraction is top-heavy, worth more than one whole. A mixed number writes the same amount as a whole number and a fraction side by side.

Two fractions are equivalent when they are worth the same amount even though the numbers look different, such as one half and two quarters.