Fraction Rules
What is a strategy to simplify fractions? What do we use?
Use multiplication facts or divide by least common multiple .
2/3 * 4/5
8/15
3 1/4 - 1 7/8
3/2
What is the reciprocal of
11/8
8/11
What comes first in the order of operations?
What is parentheses?
How do we change a whole number into a fraction?
Put a 1 in the denominator, or put it over 1.
3/5 * 7/8
21/40
5/6 + 3/10
17/15
1/8 -: 3
1/24
What does the S stand from in PEMDAS?
What is subtraction?
3 word phrase to help us with dividing fractions.
Keep - Change - Flip
4 * 7/8
7/2 or 3 1/2
1/3 - 1/4
1/12
6 -: 1/8
48
7/8 + 1/4 × (3/2 - 5/8)
1 3/32
When dividing fractions, you are changing into ______________________ fractions?
multiplying
5/12 * 9
15/4 or 3 3/4
2 1/3 + 6 6/7 - 3/2
323/42
1/2 -: 5
1/10
(1 1/2 + 2 3/4) - (4 1/2 - 3 3/4)
3 1/2
What should you do first to mixed numbers when multiplying or dividing fractions?
Convert them to improper fractions.
Change them to improper fractions.
Make them improper fractionns.
2/9 * 3/8
1/12
9 2/3 - 6 1/4
3 5/12
1/12 -: 3
1/36
Solve:
11+( 2/3*/*4/15)
13 1/2