Simplify the Fraction
18/30
3/5
1/5 min = ___ sec.
12 sec.
6 1/2 + 3 2/3
10 1/6
17/8
2 1/8
What do we look for when we want to see if fractions can be simplified before multiplying (cancellation process)?
GCF (Greatest Common Factor)
15/21
5/7
1/8 pt = ___ fl. oz.
2 fl. oz.
32 11/12 - 17 3/4
15 1/6
20/15
1 1/3
If a fraction of a larger measure is converted to a smaller measure, the conversion step is what?
Example: 2/3 yd = 2 ft
18/27
2/3
3 qt. = ___ gal.
3/4 gal.
5/9 x 3/10
1/6
6 2/5
What are the steps to multiplying fractions and mixed numbers?
Example: 4 1/5 x 1/3
1. Change the mixed number to an improper fraction.
2. Check for cancellation.
3. Multiply.
6/30
1/5
1/4 pk = ___ qt
2 qt.
6
44/6
7 1/3
If the smaller measure is only a part of the larger measure, the conversion is what?
division
Example: 1 ft = 1/3 yd
2/18
3/4 mi = ___ ft
3960 ft.
2 1/7 x 1 1/20
2 1/4
125/11
11 4/11
How do you change a mixed number to an improper fraction?
Multiply the whole number with the denominator, then add with the numerator. That number goes over the same denominator used in the problem.