Rational numbers

Add rational numbers

100

1/4 + 2/8

1/2

200

1/2 + -1/2

0

300

-10/20 + - 20/40

-1

400

Riana ate 3/7 of a pie then Kelly eats 1/3 more of the pie. How much pie did they eat in total?

16/21

500

Mason brings a party size bag of hot Cheetos. Mason eats 3/4 of the bag, betty eat 2/4 of the bag and Katie eats 3/7 of hot Cheetos. How many Cheetos did they eat all together?

1  19/28

subtract rational numbers

100

2/3 - 5/6

-1/6

200

4/5 - 3/4

1/20

300

2/4 - (-0.7)

1.2

400

-27 - (-1/2)

- 26 1/2

500

1/2- (-2/6)

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      7

5/42

divide rational numbers

100

3/4 / 2/3

1 1/8

200

5/6 / 10

1/2

300

-1 1/2 / 1/7

-10 1/2

400

(6 / - 1/5) / 0.5

-60

500

-60 / -2/10

300

multiply rational numbers

100

-1/2 x 4

-2

200

-3/4 x 8

-6

300

-3.50 x 14

-49

400

-1/4 x - 3/7

3/28

500

Kate is on a long car trip. Overtime she stops to buy gas, she loses 1/4 of an hr of travel time.if she has to stop 8 times, how late will Kate get to her destination?

2 hrs late