4th Grade Fractions
1/2 + 3/4
Write as a improper fraction and mixed number
5/4 or 1 1/4
640 / 8
80
What is the fraction 7/10 written as a decimal?
0.7
20 L = _______ mL.
20,000 mL
Amanda had 12 puppies, Sam had 2 times as many puppies. How many puppies did they have in all?
36 puppies
Are the two fractions equivalent? You have to prove it!
3/7 = 21/49
Yes!
because you can multiply the numerator 3 x 7 to get the numerator 21, and you can also multiply the denominator 7 x 7 to get the denominator 49. So 3/7 is equivalent to 21/49
45/7 changed to a mixed number
6 3/7
0.79 and 1.56
2.35
5.8km = _______ m?
5,800 m
List all the factors of 24.
1,2,3,4,6,8,12,24
Compare the following fractions: greater than, less than, or equal to and explain why!
4/9 4/8
4/9 is less than 4/8, because the numerators are the same and when you compare denominators, the fraction with eight as the denominator has larger pieces than the fraction with the nine as the denominator.
Are the following fractions equivalent? WHY??
5/9 and 31/ 54?
No!
Because you cannot multiply the numerator and the denominator by the same number.
5 does not multiply by any whole number to get 31!
What is the difference of the following decimals?
4.97 and 2.09
2.88
8 ft = _______ in.
96 in.
Is 51 prime or composite?
composite
What is the sum of
4/8 and 3/4
Change to a mixed number or simplify or both if needed!
ADD! Find the common denominator!
4/8 and 3/4 has a common denominator of 8, so change 3/4 to an equivalent fraction with a denominator of 8.
3/4 4 x 2 = 8, 3 x 2 = 6
so 6/8 + 4/8 = 10/8 changed to a mixed number is
1 2/8 simplified is 1 1/4
16/3 changed to a mixed number
5 1/3
What is 1 and 3/100 written as a decimal?
1.03
24 pt. = ____ gal.
3 gal.
Round 20,424 to the nearest hundred
20,400
What is the difference of the the fractions
3/9 and 2/6
Subtraction! Find the common denominator of 9 and 6 = 18!
Change the fractions to equivalent fractions with a denominator of 18!
3/9: 9x2 and 3x2 = 6/18
2/6: 6x3 and 2x3 =6/18
6/18 - 6/18 = 0
Find the difference.
6/7 - 4/5
2/35
What is the difference of the following decimals?
4.789 and 1.243
3.546
5 yd. = _____ in.
180 in.
How many dimes are in $1.75, what is left over?
17 dimes and 1 nickel