Adding and Subtracting Fractions

When you are adding and subtracting fractions, what is one of the first things you must do.

• Start adding and subtracting

• Find a common denominator

• Call a friend for help

• Panic

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What is an improper fraction?

• A fraction that is not nice

• A fraction with the numerator larger than the denominator

• A fraction with the denominator larger than the numerator

• A fraction with a whole number and a fraction

Tags

CCSS.3.NF.A.3C

When you are adding or subtracting a mixed number and an improper fraction, what is the first thing you should do?

• Use a calculator because this is just too hard

• Add all the numbers together to get your answer

• Change them to both mixed numbers or both improper fractions

• Give up, because you just can't do this type of problem

Tags

CCSS.7.NS.A.1C

When adding and subtracting fractions, when do you use multiples?

• When you are trying to find the common denominator

• When you are simplifying fractions

• When your numbers are too small

• When your numbers are too large

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

When you are adding and subtracting fractions, when do you use the factors?

• When Finding the common denominator

• When simplifying or reducing the fraction

• When you have no idea what to do

• When the decimal is a power of 10

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What does LCM stand for?

• Last Common Multiplication

• Least Common Multiple

• Left Cold Meatballs

• Leave Cookies & Milk

When do you use the LCM?

• When you are trying to find the common denominator

• When you are trying to find the simplified fraction

• When you are skip counting (saying your multiplication facts)

• When you are trying to turn the fraction into a whole number

What is the GCF

• Good Cool Friend

• Going Camping Friday

• Greatest Common Factor

• Greatest Common Fraction

When do you use the GCF with fractions?

• When you are trying to find the common denominator

• When you are simplifying or reducing the fraction

• When you are going to the grocery store to get ice cream

• When you are roller skating

How do you change an improper fraction to a mixed number?

• Make the numerator the whole number and the denominator the fraction

• Multiply the whole number times the denominator and add the numerator

• Divide the numerator by the denominator. The quotient becomes your whole number, the remainder becomes your numerator, and the divisor remains your denominator.

• You can't change an improper fraction to a mixed number