Vocabulary
What is the word for the top number of a fraction?
1/2 ÷ 5
1/10
1 2/3 ÷ 3 1/3
2
1 divided by 1/2
2
Denominator
1/4 ÷ 2
1/8
2 1/4 ÷ 1 1/2
1
True or False?
When dividing a whole number by a fraction with numerator is 1, the quotient will always be a whole number.
True
1/3 divided by 3
1/9
What is the term for a fraction that has a numerator that is larger than the denominator?
Improper Fraction
3 ÷ 1/3
9
10 1/2 ÷ 1 2/3
3 1/4
Maya has an 8 foot rope and needs to cut it into 1/2 foot sections. How many sections will she have?
16 sections
What is the reciprocal of 4/5?
5/4
Two fractions that when multiplied together have a product as 1. Also known as "flipped" fractions.
Reciprocal
1/4 ÷ 5/4
4/20 = 1/5
8 3/4 ÷ 2 2/5
8 1/24
Wesley works at NASA on space satellites. He needs to power a satellite for its 5 years in space. Each battery he uses can power the satellite for 1/5 of a year.
How many batteries does the satellite need to make sure it has power for 5 years?
25 batteries
What is the reciprocal of 9?
1/9
4/7 ÷ 2/3
6/7
9 1/2 ÷ 9 2/3
29/30
Troy has a farm where he raises animals. He has 1/2 of an acre that he wants to evenly divide into 10 pens.
How large will each pen be in square meter?
1 acre（英亩）=4047 m²
1/20 of an acre= 202.35 m²