Divisibility
Which of the following numbers are factors of 420? 2, 3, 4, 5, 10
2, 3, 4, 5, 10
Write 54/40 as a mixed number in lowest terms.
1 7/20
What is the least common multiple of 8 and 12?
24
-3/8 + 1/8
-1/4
3/2 x (-5/7)
-1 1/4
Which of the following numbers are factors of 315? 2, 3, 4, 5, 10
3, 5
Write 118/15 as a mixed number in lowest terms.
7 13/15
What is the least common denominator you could make for these fractions:
2/9 and 6/11
99
4 13/15 + 5 4/15
10 2/15
-2/5 x -15/16
3/8
Give the prime factorization of 72.
2 * 2 * 2 * 3 * 3
Write -4 2/13 as an improper fraction.
-54/13
What is the least common denominator you could make for these fractions:
3/8 and 11/36
72
1/4 - 7/12
-1/3
-3/5 x 15/16 x -2/3
3/8
Give the prime factorization of 96.
2 * 2 * 2 * 2 * 2 * 3
Write -17 2/9 as an improper fraction.
-155/9
Write each fraction with their least common denominator.
1/8 and 2/7
7/56 and 16/56
-23/10 + -14/5
-5 1/10
-21/4 divided by -7/8
6
List all the factors of 128.
1, 2, 4, 8, 16, 32, 64, and 128.
What is the reciprocal of 23/50?
50/23 or 2 4/23
Rewrite each fraction with their least common denominator. Then find the product of those fractions.
-1 5/6 and -3 1/24
-1 20/24 and -3 1/24
Product: 5 83/144
10 1/8 + (-6 3/4) - 9 11/24
-6 1/12
-10 1/3 divided by 31/33
-11