Adding fractions
1/4 + 2/4=
3/4
7/10-5/10
2/10
1 1/4 + 2 1/4
3 2/4
3 5/8- 1 3/8=
2 2/8
What is a fraction?
a Fraction is part of a whole
10/12 + 2/12=
12/12 or 1
8/16-2/16
6/16
3 7/10 + 1 1/10
4 8/10
6 2/3- 4 1/3=
2 1/3
What is a Numerator?
The numerator tells what part of the whole is used shaded or taken
3/18 + 4/18=
7/18
16/20-3/20
13/20
4 6/12 +7 4/12
11 10/12
10 10/12 - 7 5/12=
3 5/12
What is a Denominator?
The demonatior tells how many parts the whole has or divded into
15/25 + 5/25=
20/25
1/5-4/5
3/5
10 1/3+ 3 1/3
13 2/3
8 9/11- 5 2/11=
3 7/11
Give me an example of what you can use fractions for?
Cooking and measuring
20/40 + 20/40=
40/40 or 1
1 3/5- 2 1/5
1 2/5
8 2/8+ 6 6/8=
14 8/8 or 15
10 10/15- 5 10/15=
5
In order to add or subtract fractions What do you need to solve the problem?
Common Demonatior or same number on bottom