4.6 Add and subtract mixed numbers  (Page 3/4)

Solution

Rewrite the problem in vertical form.
Since $\frac{3}{5}$ is less than $\frac{4}{5}$ , take 1 from the 5 and add it to the $\frac{3}{5}:(\frac{5}{5}+\frac{3}{5}=\frac{8}{5})$
Subtract the fractions.
Subtract the whole parts. The result is in simplest form.

Since the problem was given with mixed numbers, we leave the result as mixed numbers.

Solution

Solution

Since the denominators are different, we rewrite the fractions as equivalent fractions with the LCD, $6.$ Then we will add and simplify.

We write the answer as a mixed number because we were given mixed numbers in the problem.

Solution

Since the denominators of the fractions are different, we will rewrite them as equivalent fractions with the LCD $8.$ Once in that form, we will subtract. But we will need to borrow $1$ first.

We were given mixed numbers, so we leave the answer as a mixed number.

Solution

We can see the answer will be negative since we are subtracting $4$ from $3.$ Generally, when we know the answer will be negative it is easier to subtract with improper fractions rather than mixed numbers.