+ & - Fractions
4 1/7 + (-2 1/3) =
29/7 = (-7/3)
87/21 - 49/21 = 38/21 = 1 17/21
-1 2/3 x 11/10 =
-5/3 x 11/10 = -1/3 x 11/2 = -11/6 =-1 5/6
Once a hot-air balloon reached its highest point, it dropped 35 feet. Then 5 minutes later, it dropped another thirty- two feet. Find its total change in altitude during this time.
-35 + (-32) = -67
-11 - (-56) =
45
-21 x 32 =
-672
4 5/8 - 1 2/5 =
37/8 - 7/5
185/40 - 56/40
129/40 = 3 9/40
4 1/8 x -2 1/3 =
33/8 x -7/3 = 11/8 x -7/1 = -77/8 = -9 5/8
Donna's bank account balance was $257. If he writes a check for $300 and his bank charges him $35 for overdrawing his account, find his account balance.
$257 - $300 = -43 + (-35) = $-78
-27 + (-635) =
-662
(102) / -6
-17
5/6 + 4 7/8 =
5/6 + 39/8
20/24 + 117/24 = 137/24 = 5 17/24
-2 5/9 x 1 1/8 =
-23/9 x 9/8 = -23/1 x 1/8 =-23/8 = -2 7/8
Billy is playing a card game. Black cards are worth points while red cards take points away. What is her score if she has a black 57 card and a red 93 card?
57 + (-93) = -36
45 - 320 =
-275
-35 x -20 =
700
Mandy is going to remove a 6 1/2 inch section from a piece of yarn that is 15 3/4 inches long. How much yarn is left?
15 3/4 - 6 1/2 = 63/4 - 13/2
63/4 - 26/4 = 37/4 = 9 1/4 inches
Cathy's baby sister sleeps 5/8 of the day. How many hours does she sleep?
24 x 5/8 = 24/1 x 5/8 = 3/1 x 5/1 = 15 hours
The price of a stock increased by $14 each day for 12 days. What was the total change in value of the stock over the twelve days?
$14 x 12 = $168
l -78 l + (-185) + 22 =
-85
(52 x -3) x 4 =
-624
It took Ken 4 3/4 hours to climb up a mountain, then 3 3/20 hours to climb down. Find his total climb time.
4 3/4 + 3 3/20 = 19/4 + 63/20
95/20 + 63/20
= 158/20 = 7 9/10
One lap around a race track is 2 1/2 miles. On their first lap, two race cars collided 3/4 of the way. Find the distance the ars traveled before colliding.
2 1/2 x 3/4 = 5/2 x 3/4 = 15/8 = 1 7/8 miles
Spike bought a baseball card in 2014. After the first year its worth depreciated $50. In year 2 it gained a value of $38. For the next 7 years, it lost a total value of $49. Find the overall change in value of the baseball card.
-50 + 38 + (-49) = $-61
Bob and Tom are diving. Bob is 43 feet below the surface and Tom is 17 feet below the surface. How many feet above Bob is Tom?
(-43) - (-17) = -26
-75(4 x -16) =
4800