multiply fractions
1/2 x 3/7 =
3/14
1 2/3
5/3
50/10
5
Before you multiply mixed numbers you have to...
turn mixed numbers into improper fractions.
2/3 + 5/9
1 2/9
3/4 x 2/3 =
1/2
5 9/10
59/10
5/3
1 2/3
To change a mixed number into an improper fraction, we have to...
Multiply the denominator by the whole number, add the numerator, keep the denominator the same.
4 5/8 - 2 1/4
2 3/8
2 x 4/20 =
2/5
6 3/7
45/7
20/3
6 2/3
What is the LCF (lowest common factor) of 12 and 9?
3
6 3/7 + 4 2/3
11 2/21
1 1/2 x 3 =
4 1/2
12 3/4
51/4
26/4
6 1/2
Before you can add or subtract fractions or mixed numbers, what must happen?
The denominators have to be the same.
7 1/8 - 2 1/2
4 5/8
3 1/2 x 1 4/5
6 3/10
9 4/7
67/7
78/10
7 4/5
How would you write 7/8 as a decimal?
(6 2/3 - 2 5/6) x 2 4/7
9 6/7