multiply 1/9 by 4 1/5 write the answer in simplest form

To multiply 1/9 by 4 1/5, we first convert the mixed number 4 1/5 into an improper fraction.

To do this, we multiply the whole number (4) by the denominator (5) and add the numerator (1) to get 4 * 5 + 1 = 20 + 1 = 21.

Therefore, 4 1/5 as an improper fraction is 21/5.

Next, we multiply 1/9 with 21/5 by multiplying the numerators (1 * 21 = 21) and the denominators (9 * 5 = 45).

So, 1/9 * 4 1/5 = (1/9) * (21/5) = (1 * 21)/(9 * 5) = 21/45.

The fraction 21/45 cannot be simplified further.