Math.4.NF.3a 4.NF.B.3.A Math.4.NF.3c 4.NF.B.3.C

Common Core Standards Add & Subtract Fractions & Mixed Numbers
Grade:	4th Grade
Standard:	Math.4.NF.3a or 4.NF.B.3.A
Description:	Understand addition and subtraction of fractions as joining and separating parts referring to the same whole.
Standard:	Math.4.NF.3c or 4.NF.B.3.C
Description:	Add and subtract mixed numbers with like denominators, e.g., by replacing each mixed number with an equivalent fraction, and/or by using properties of operations and the relationship between addition and subtraction.

4th Grade Math - Add & Subtract Fractions & Mixed Numbers Lesson

To add fractions with like denominators, add the
numerators and keep the denominator the same.

$\frac{2}{6}$	$+$	$\frac{3}{6}$	$=$	$?$
	$+$		$=$	$?$

$\frac{2}{6}$	$+$	$\frac{3}{6}$	$=$	$\frac{5}{6}$
	$+$		$=$

To subtract fractions with like denominators, subtract the
numerators and keep the denominator the same.

$\frac{7}{10}$	$-$	$\frac{4}{10}$	$=$	$?$
	$-$		$=$	$?$

$\frac{7}{10}$	$-$	$\frac{4}{10}$	$=$	$\frac{3}{10}$
	$-$		$=$

Common Core Standards