Adding/Subtracting Fractions
1/2 + 5/2
6/2
3 xx 1/2
3/2
5/10
50%
5:6 = ___:18
15
A car travels 100km in 2 hours. How far did it go in one hour?
50km
1/2 + 4/5
13/10
4/3 xx 4
16/3
0.3
30%
___ : 28 = 8:7
32
A student completes 15 math problems in 5 minutes. How many would he complete in 1 minute?
3 math problems.
11/2 - 5/3
23/6
10 xx 4/3
40/3
11/20
55%
24:42 = 4:___
7
$21
1 2/5 - 1 3/4
13/20
2 1/2 xx 5
25/2
6/8
75%
24:6 = 32:___
*Hint: Use unit rates.
8
The world record for hot dog eating is 80 hotdogs in 10 minutes. How many hot dogs could he eat in 7 minutes at the same pace?
56 hot dogs.
5 1/2 - 2 1/3
19/6
3 3/4 xx 2
30/4
7/14
50%
6:54 = 9:___
81
20cm of snow fell in 4 hours. How much snow would fall in 5 hours?
25cm