Adding
to add fractions they must have the same ______.
What is denominator?
When subtracting fractions with unlike denominators you must first find the..?
Find the LCD/LCM
8 * 1/1 =
8 * 1/1 = 8/1 = 8
What is the keyword in this word problem and what does it mean:
Jerome has a 3/4 m ribbon. He cuts it into equal pieces 1/8 m long. How many pieces does he have?
Keyword : into - means to divide
What are some keywords for addition?
Altogether, in all, total, increase, combine, add...
1/2 + 5/2
3
4/5 -3/5
1/5
1/2 is the same as 15/30
True or False?
True
9/5 ÷ 2
The part top part that tells how many pieces you are talking about is
What is the numerator
When adding fractions with a common denominator, what do you do with the numerators?
What is add?
When subtracting fractions with a common denominator, what do you do with the numerators?
What is subtract?
True of False, when you multiply fractions, you multiply the numerators and the denominators?
True
1/2 ÷ 8/7
1/2 * 7/8 = 7/16
Before we can add or subtract fractions, we must have a common...
What is denominator
2/4 + 3/8
7/8
7/10 - 1/4 =
14/20 - 5/20 =
9/20
8/7 ⋅ 7/10
8/ 7 ⋅ 7/10 =
4/1 * 1/5 = 4/5
1/5 ÷ 7/4
1/5 * 4/7 = 4/35
What is an improper fraction?
A Fraction with a larger numerator over a smaller denominator.
1/4 + 3/5 =
5/20 + 12/20 = 17/20
6 − 1/6
6/1 - 1/6
6/6 * 6/1 - 1/6
36/6 - 1/6 = 35/6
5 5/6
2 ⋅ 3/7
2/1 * 3/7 = 6/7
3/2 ÷ 10/7
3/2 * 7/10 = 21/20
What are some keywords that mean subtraction?
minus, difference, less than...
1/3 + 2/5 =
5/15 + 6/15 = 11/15
8 1/2 - 2 4/10 =
8 5/10 - 2 4/10 =
6 1/10
1 1/4 ⋅ 9
5/4 * 9/1 = 45/4 = 11 1/4
2 ÷ 3 4/5
2/1 ÷ 3 4/5 = 2/1 -: 19/5
2/1 * 5/19 = 10/19
What are some keywords for multiplication?
of, times, twice...
2 4/5 + 4 1/2 =
2 8/10 + 4 5/10 =
6 13/10 =
7 3/10
5 3/4 - 2 1/10 =
5 15/20 - 2 2/20 =
3 13/20
2 3/8 ⋅ 2 1/2
19/8 * 5/2 = 95/16
5 15/16
3 7/10 ÷ 2 1/4
37/10 -: 9/4 =
37/10 * 4/9 =
37/5 * 2/9 = 74/45
1 29/45
What are some keywords for division?
Into, equal pieces...
6 1/3 + 9 1/2 =
6 2/6 + 9 3/6 =
15 5/6
8 1/2 - 1 1/4 =
8 2/4 - 1 1/4 =
7 1/4
2 1/5 ⋅ 1 3/4
11/5 * 7/4 = 77/20
3 17/20
1 6/7 ÷ 5 3/4
13/7 -: 23 / 4 = 13/7 * 4/23
= 52/161
What does the terms ascending and descending means?
Ascending means to increase or go up; least to greatest.
Descending means to decrease, go down, start from something big and go small, greatest to least.
One pitcher has 3/8 of a liter of milk in it and the other pitcher has 5/12 of a liter milk in it. How much milk is there altogether?
3/8 + 5/12 = 19/24
The coffee shop also sells small bags of coffee beans. The bags come in two sizes: 4/5 kilogram and 7/12 kilogram. How much more coffee does the bigger bag have?
4/5 − 7/12 = 13/60
There were 9/12 gallons of latex paint in storage. William used 2/7 of the paint for the fence. How much paint did he use?
9/12 * 2/7 = 9/6 * 1/7
= 9/42 = 3/14
Hillary has 9/10 l of cooking oil, She pours them into 1/20 l bottles. Find the number of 1/20 l bottles.
9/10 -: 1/20 = 9/10 * 20/1
9/1 * 2/1 = 18/1 = 18
What is it called when you make a fraction smaller?
Simplifying