How can you order fractions 3/10, 3/6, 2/5 from least to greatest? (Need to find common denominator)

Question

Find equivalent fractions: 3/10, 3/6, 2/5 with a common denominator and order from least to greatest? 

I need to find a common denominator between the fractions. ( not by decimal)

Answer 1

3/10

3/6

2/5

 

The least common denominator is 30, so we convert each fraction:

3/10 x 3/3 = 9/30

3/6 x 5/5 = 15/30

2/5 x 6/6 = 12/30

 

Now put them in order!

 

Answer 2

2/5  = 0.4

 

3/10 = 0.3

 

3/6 = 0.5

 

The smallest number is 0.3 followed by 0.4 and then 0.5

 

so arrange them