Question

2. Order the fractions 3/7 4/5 5/9 and 1/8 from least to greatest. Explain your method.

Answer 1

1/8,3/7,5/9,4/5

Explanation:

7,5,9,8 - you must find the LCM (least common multiple) of these denominators

Lcm is pretty much the smallest number that in this case, 7,5,9,8 will all be able to factor to. Unfortunately, it’s not too simple here. The best way to find it now is to multiply all. 7x5x9x8 is 2520.

Now we need to convert. Divide 2520 by each denominator then multiply that to each numerator. Then compare.

alt. Method

Find each fraction as a decimal.
3/7=0.429

4/5=0.8

5/9=0.556

1/8=0.125