Adding and Subtracting Fractions
What is the common denominator for 1/3 and 4/5?
15
If Mrs. Rogers runs 1 and 2/3 mile on Monday, 1 and 1/2 mile on Tuesday, and 1 and 3/4 on Wednesday, how many miles did she run in total?
4 and 11/12 miles
The expression 3 x 1,000 + 2 x 100 + 9 x 1/10+ 9 x1/1,000 shows a number written in expanded form. Use the expression to write the number in decimal form in the blank.
3,200.909
7.45 + 3.25 =
10.70
Mrs. Waterman wanted to make tropical punch. She combined 14.32 ounces of pineapple juice and 28.9 ounces of orange juice. How many ounces of tropical punch did she have all together?
2.4
Rewrite the expression with common denominators using equivalent fractions:
6/8 and 7/12
18/24 and 14/24
3/4 and 2/6
9/12 and 4/12
What is the unknown exponent:
3.45 x 10? = 345
102
234.56 +12.099
246.659
Mr. O'Neal went to the store to buy fruit. He bought 3.45lbs of apples, 2.3lbs of oranges, and 7.011lbs of bananas? How many pounds of fruit does he have all together?
12.761
6/9 + 2/3
12/9 or 1 3/9 or 1 1/3
The recipe called for 2 and 3/5 cups of flour and 3/10 cups of sugar. How many cups does the recipe have in all?
2 and 9/10
24.78 / 10
2.478
34.5 + 456.23 + 768.001
1,258.731
Millie has three pieces of string. The lengths of the strings are 12.2 centimeters, 12.22 centimeters, and 12.02 centimeters. What is the difference in length between the longest and shortest pieces of strings? Show your work.
0.2
1 1/3 - 1/2
5/6
Miss Harris had 3 and 1/6 yards of fabric and Ms. Rowley 1 and 5/12 yards of fabric. How much more fabric does Miss Harris have than Ms. Rowley?
1 and 9/12 or 1 and 3/4
What is the exponent form of 1,000?
103
(2.4 x 10) + (3 / 100)
24.03
Ms. Shawna drinks .9 gallons of water on Thursday and .62 gallons of water on Friday. How much more water did she drink on Thursday than Friday?
.28
10 1/4 - 5 3/5
4 13/20
Mrs. DeBoer started the day with 2 liters of coffee. By the end of the day, she only had 1/3 of a liter left. How much coffee did Mrs. DeBoer drink through out the day?
1 and 2/3
Fill in the blanks. What is the lowest number and the highest number that will round to 1 when rounding to the nearest whole?
___ . ____ ____
0.50
1.49
.789 - .56
.229
Mrs. Stumph has three avocados for making guacamole. If the weigh 4.56 ounces, 3.89 ounces, and 2.01 ounces, what is the difference between the weights of the heaviest and lightest avocado?
2.55