This video uses the 'Keep, Change, Flip' mnemonic to teach students how to divide fractions. Keep the first fraction the same, change the division sign to multiplication, flip the second fraction over, then solve it the same way as a multiplication problem, by multiplying the numerators and denominators. The song shows students this process with an example problem and explains the math behind it.
Using ‘Keep, change, flip' is simple. Keep the first fraction as is, change the sign from division to multiplication, and flip the second fraction, putting the numerator on the bottom and the denominator on the top. Then multiply the two fractions to solve.