Adding and Subtracting Fractions

Adding and Subtracting Fractions

• ​I can add and subtract fractions with like denominators.

• I can add and subtracting positive fractions with unlike-denominators.

• ​I can add and subtract positive and negative fractions.​

Fraction Vocabulary

• Fractions - real numbers that represent a part of a whole.

• ​Numerator - the "part" of the fraction (on top)

• ​Denominator - the "whole" of the fraction (on bottom)

• ​Proper fraction - the numerator is smaller than the denominator

• ​Improper fraction - the numerator if bigger than or equal to the denominator

• ​Mixed number - there is a whole number and a fraction

• ​Simplifying - the process of dividing the numerator and denominator by the greatest common factor

Multiple Choice

Vocabulary Review

The "part" of the fraction is the __________.

(hint: it is on top)

• Fraction Bar

• Numerator

• Denominator

• Simplifying

Multiple Choice

Vocabulary Review

The "whole" of the fraction is the __________.

(hint: it is on bottom)

• Fraction Bar

• Numerator

• Denominator

• Simplifying

Multiple Choice

Vocabulary Review

The type of fraction with both a whole number and a fraction is a...

• Proper

• Improper

• Mixed Number

Multiple Choice

Vocabulary Review

The type of fraction with a numerator smaller than the denominator is...

• Proper

• Improper

• Mixed Number

Multiple Choice

Vocabulary Review

The type of fraction with a numerator bigger than the denominator is...

• Proper

• Improper

• Mixed Number

Multiple Choice

​I can add and subtract fractions with like denominators.

$$\frac{1}{10}+\frac{2}{10}=$$  

• $$\frac{1}{5}$$  

• $$\frac{3}{10}$$  

• $$\frac{2}{5}$$  

• $$\frac{4}{20}$$  

Multiple Choice

​I can add and subtract fractions with like denominators.

$$\frac{3}{8}+\frac{1}{8}=$$  

• $$\frac{1}{4}$$  

• $$\frac{1}{2}$$  

• $$\frac{5}{8}$$  

• $$\frac{4}{16}$$  

Multiple Choice

​I can add and subtract fractions with like denominators.

$$\frac{7}{8}-\frac{2}{8}=$$  

• $$\frac{5}{8}$$  

• $$\frac{5}{0}$$  

• $$0$$  

• $$\frac{1}{2}$$  

Multiple Choice

​I can add and subtract fractions with like denominators.

$$\frac{3}{4}-\frac{1}{4}=$$  

• $$\frac{2}{0}$$  

• $$0$$  

• $$\frac{2}{5}$$  

• $$\frac{1}{2}$$  

Multiple Choice

I can add and subtracting positive fractions with unlike-denominators.

$$\frac{1}{4}+\frac{1}{2}=$$  

• $$\frac{3}{4}$$  

• $$\frac{2}{6}$$  

• $$\frac{1}{4}$$  

• $$\frac{1}{3}$$  

Multiple Choice

I can add and subtracting positive fractions with unlike-denominators.

$$\frac{3}{8}+\frac{1}{3}=$$  

• $$\frac{4}{11}$$  

• $$\frac{1}{3}$$  

•   $$\frac{17}{24}$$

•   $$\frac{3}{8}$$  

Multiple Choice

I can add and subtracting positive fractions with unlike-denominators.

$$\frac{4}{5}-\frac{1}{3}=$$  

• $$\frac{3}{2}$$  

• $$\frac{7}{15}$$  

• $$\frac{5}{8}$$  

•   $$\frac{3}{8}$$  

Multiple Choice

​I can add and subtract positive and negative fractions.

$$-\frac{3}{8}+\frac{1}{2}=$$  

• $$\frac{1}{8}$$  

• $$-\frac{2}{6}$$  

• $$-\frac{1}{3}$$  

• $$-\frac{1}{8}$$  

Multiple Choice

​I can add and subtract positive and negative fractions.

$$\frac{1}{5}+\left(-\frac{1}{2}\right)=$$  

• $$\frac{1}{3}$$  

• $$-\frac{3}{10}$$  

• $$-\frac{1}{3}$$  

• $$\frac{2}{7}$$  

Multiple Choice

​I can add and subtract positive and negative fractions.

$$-\frac{2}{7}+\left(-\frac{1}{3}\right)=$$  

• $$-\frac{1}{4}$$  

• $$-\frac{3}{10}$$  

• $$\frac{1}{4}$$  

• $$-\frac{13}{21}$$