adding rational numbers
7.53 + 8.47
16
1/4 ÷ 3/8
2/3
5(1/3)
1 2/3
8/11 - 3/11
5/11
Joe had a breakfast party. He invited four of his best friends. Each friend brought 3.4 cups of coffee. How much coffee did they all bring together?
13.6
17.42 + 18.49
35.91
-20 ÷ 0.5
-40
-3.2 x 5
-16
- 4/13 - 8/13
-12/13
To make a small amount of play dough, you can mix 4 cups of flour, 1/6 cup of salt, and 3/8 cup of water. What is the total amount of ingredients added to make the play dough?
4 13/24
29.367 + 38.478
67.845
-15 ÷ -5/8
24
-1/6 (-2/3)
1/9
-0.06 - (-0.86)
0.8
From a rope 11 m long, two pieces of lengths 13/5 m and 33/10 m are cut off. What is the length of the remaining rope?
51/10 m
27.38 + -18.27
19.11
2 1/2 ÷ 4
5/8
2/5(-9/8)
9/20
-5/12 - (-2/24)
-1/3
Rita had $300. She spent 1/3 of her money on notebooks and 1/4 of the remainder on stationery items. How much money is left with her?
$150
-83.43 + 37.64
-45.79
3/8 ÷ 9/2 ÷ 3/6
36/216
-2.57 (-.5)
1.285
-0.78 - (-8.96)
8.18
Adrian earns $16000 per month. He spends 1/4 of his income on food; 3/10 of the remainder on house rent and 5/21 of the remainder on the education of children. How much money is still left with him?
$6400