Fractions Flashcards
Refer to Fraction Rules Note
Adding Fractions:
What must you do first before adding fractions?
Find the common denominator
Example: 2/5 and 1/3
The common denominator is 15.
5x3=15
3x5=15
From there you add as normal keeping the denominator the same
Adding Fractions:
How do you add 2 mixed fractions?
Step 1) Find the common denominator of the fractions
Step 2) Add together the whole numbers and numerators
Example: 8 3/7 + 1 7/14
2x7=14
7x2=14
=8 6/14 + 1 7/14
=9 13/ 14
How do you turn mixed fractions into improper fractions?
Add together the whole number and the numerator and multiply by the demoninator
Improper Fraction
A fraction with a larger numerator than denominator
Mixed Fraction
A fraction with a whole number and a fraction
Subtracting Fractions:
Once you’ve turned your fractions into improper fractions how do you subtract?
Find the Common Denominator and add
Then Take your new fractions (With the same denominator) and subtract
*Lowest Terms*
Dividing Fractions:
What steps must you take to divide fractions?
Step 1) Take the second fraction in the equation and flip the numerator and denominators
Step 2: Multiply the tops and bottoms together in both fractions
*Remember to always put fractions in lowest terms
Example: 4/5 and 1/3
=4/5 and 3/1
= 12/ 5
= 2 2/5
Multiplying Fractions:
What steps must you take to multiply fractions?
Step 1) Turn any mixed fractions into improper fractions
Step 2) Multiply numerators and denominators
*Lowest Terms*
Review “Fraction Rules”