simplifying fractions
2/8
1/4
2/3 * 4/5
8/15
1 1/2 * 5
15/2 or 7 1/2
What is the reciprocal of
11/8
8/11
What fraction do we flip?
the second fraction
17/25
can't be simplified
3/5 * 7/8
21/40
5/6 * 1 1/3
10/9 or 1 1/9
1/8 -: 3
1/24
How do we change a whole number into a fraction?
Put a 1 in the denominator, or put it over 1.
4/24
1/6
4 * 7/8
7/2 or 3 1/2
3 1/3 * 1/4
5/6
6 -: 1/8
48
How do we convert a mixed number into a fraction?
Multiply the denominator with the whole number and add the numerator.
35/49
5/7
5/12 * 9
15/4 or 3 3/4
1 1/3 * 2 1/8
17/6 or 2 5/6
1/2 -: 5
1/10
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.
45/105
3/7
2/9 * 3/8
1/12
2 2/3 * 5 1/4
14
1/12 -: 3
1/36
What is a strategy to simplify fractions? What do we use?
Use multiplication facts or divide by least common factor.