Adding and Subtracting Mixed Numbers

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Lindsay Toone

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Adding and Subtracting mixed numbers with like denominators

When adding and subtracting fractions with the same denominator. . .

Add or subtract the numerators
Denominator STAYS THE SAME

Multiple Choice

$\frac{1}{4}$ + $\frac{2}{4}$ =

$\frac{3}{4}$

$\frac{3}{8}$

Multiple Choice

$\frac{6}{7}$ - $\frac{1}{7}$ =

$\frac{5}{14}$

$\frac{5}{7}$

$\frac{5}{0}$

When adding mixed numbers,

Start with the fraction!
Add the fraction first
Then add or subtract the whole numbers
Then simplify the fraction IF it is an improper fraction

Multiple Choice

$3\ \frac{1}{5}+2\ \frac{2}{5}=$

$5\ \frac{3}{5}$

$5\ \frac{3}{10}$

Multiple Choice

$2\ \frac{1}{4}+\ 2\ \frac{2}{4}=$

$4\ \frac{3}{4}$

$4\ \frac{2}{4}$

$4\ \frac{3}{8}$

If you have an improper fraction in your answer. . .

You have to add the wholes to the whole number!!

Multiple Choice

$2\ \frac{1}{2}+\ 3\ \frac{1}{2}\ =$

$5\ \frac{2}{2}$

Subtracting mixed numbers can be trickier if you have to regroup!!

Just remember that 1 whole is any fraction with the same numerator and denominator!!

Multiple Choice

$1\ -\ \frac{1}{4}=$

$\frac{3}{4}$

$\frac{1}{4}$

To do that, you have to REGROUP the whole.

Multiple Choice

$2\ \frac{2}{6}-1\ \frac{4}{6}=$

$1\ \frac{2}{6}$

$\frac{4}{6}$

$1\ \frac{4}{6}$

Multiple Choice

$3\ \frac{1}{3}-1\ \frac{2}{3}=$

$2\ \frac{1}{3}$

$2\ \frac{2}{3}$

$1\ \frac{2}{3}$

Adding and Subtracting mixed numbers with like denominators

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