Adding/Subtracting Fractions Facts

When adding or subtracting fractions, what is the FIRST check you should do?

• Check if the numerators are the same

• Check if the denominator is larger than the numerator

• Check if the denominators are the same

• Check to make sure I don't have any mixed numbers

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

When adding or subtracting fractions with UNLIKE denominators,

what's the first thing you do in order to solve the problem?

• Add the numerators

• Add the denominators

• Multiply the numerators

• Find the lowest common denominator

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What does LCM stand for?

• Lowest Coke Machine

• Lowest Common Mandelorian

• Lowest Common Multiple

• Lowest Carmen Multiple

When you find the LCM (which will be your LCD), and you are multiplying the denominator times the multiplier, what is the rule we use?

• Whatever you do to the denominator, you must do to the numerator

• Whatever you do to the denominator, never do it again.

• Whatever you do the denominator in an addition problem, you cannot do in a subtraction problem

• You can do anything at all that you want

Tags

CCSS.5.NF.B.5B

True or False? The Lowest Common Multiple becomes the Lowest Common Denominator

• True

• False