Adding, Subtracting and. Multiplying Fractions

Mathematical Equivalence

OFF

Mathematical Equivalence

OFF

Mathematical Equivalence

OFF

David was preparing a recipe that required him to use 15 grams of sugar out of a 25 gram packet. What fraction of the sugar packet did David use in simplest form?

In class of 32 students, there 20 students who walk to school. What fraction of the class walk to school, in simplest form?

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Mathematical Equivalence

OFF

Answer explanation

Add or subtract the numerators, and the denominators stay the same.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Mathematical Equivalence

OFF

Answer explanation

Add or subtract the numerators, and the denominators stay the same.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Mathematical Equivalence

OFF

Answer explanation

Add or subtract the numerators, and the denominators stay the same.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Mathematical Equivalence

OFF

Answer explanation

Add or subtract the numerators, and the denominators stay the same.

Your answer to this question can then be simplified, by dividing by the highest common factor.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Mathematical Equivalence

OFF

Answer explanation

Find the lowest common denominator for both fractions.

Use this to make two equivalent fractions with the same denominator.

Add/subtract the numerators and denominators stay the same.

Tags

CCSS.7.NS.A.1C