Fraction Rules
What is a strategy to simplify fractions? What do we use?
Use helper numbers or divide by least common factor.
2/3 * 4/5
8/15
1/2 * 5
1/10
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
1/2
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
What would be the correct order of operations for this problem: 3+5-(8x1)?
What is multiplication, addition then subtraction?
When dividing fractions, you are changing into ______________________ fractions?
multiplying
5/12 * 9
15/4 or 3 3/4
1/3 * 6/7
2/7
1/2 -: 5
1/10
Solve: 7 x (2 + 5)
49
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
2/3 * 1/4
1/6
1/12 -: 3
1/36
Solve:
11+( 2/3*/*4/15)
12 1/2