Question

Determine if each proportion is true or false

5/6= 15/18
3/5 = 60/100
20/14 =10/7
4/13= 10/32

Answer 1

True

True

True

False

Explanation:

15/18 simplified is 5/6

3/5 multiply both numerator and denominator by 20 to get 60/100

20/14 simplified is 10/7

4/13 multiply both by 2.5 to get 10/32.5 and 32.5 does not equal 32

Answer 2

Explanation:

`(5)/(6)=(15)/(18)`

Cross multiply

5 *18 = 15 *6

90 = 90

True. They are in proportion

`(3)/(5)=(60)/(100)`

Cross multiply

3*100 = 60 *5

300 = 300

True. They are in proportion

`(20)/(14)=(10)/(7)`

Cross multiply

20*7 = 10*14

140 = 140

True. They are in proportion

`(4)/(13)=(10)/(32)`

Cross multiply

4*32 = 10*13

128 ≠ 130

False. They are NOT in proportion