Math Investigation - Operations with Fractions with Common Denominators

CCSS.MATH.CONTENT.4.NF.A.2

Compare two fractions with different numerators and different denominators, e.g., by creating common denominators or numerators, or by comparing to a benchmark fraction such as 1/2. Recognize that comparisons are valid only when the two fractions ref...

CCSS.MATH.CONTENT.4.NF.B.3

Understand a fraction a/b with a > 1 as a sum of fractions 1/b.

CCSS.MATH.CONTENT.4.NF.B.3.A

Understand addition and subtraction of fractions as joining and separating parts referring to the same whole.

CCSS.MATH.CONTENT.4.NF.B.3.D

Solve word problems involving addition and subtraction of fractions referring to the same whole and having like denominators, e.g., by using visual fraction models and equations to represent the problem.

CCSS.MATH.PRACTICE.MP4

Math 4.1(A)

Apply mathematics to problems arising in everyday life, society, and the workplace;

Math 4.3(A)

Represent a fraction a/b as a sum of fractions 1/b, where a and b are whole numbers and b > 0, including when a > b;

Math 4.3(D)

Compare two fractions with different numerators and different denominators and represent the comparison using the symbols >, =, or

Math 4.3(E)

Represent and solve addition and subtraction of fractions with equal denominators using objects and pictorial models that build to the number line and properties of operations;

Math 4.3(F)

Evaluate the reasonableness of sums and differences of fractions using benchmark fractions 0, 1/4, 1/2, 3/4, and 1, referring to the same whole; and

Math 4.3(G)

Represent fractions and decimals to the tenths or hundredths as distances from zero on a number line.

Math 5.1(A)

Apply mathematics to problems arising in everyday life, society, and the workplace;

Math 5.3(K)

Add and subtract positive rational numbers fluently; and