Question

Find the least common denominator (LCD) for these fractions.

16. 1/4, 1/12, 11/16

17. 5/56, 7/24, 7/12, 5/42

18. 2/1, 1/5, 1/10, 5/6

Answer 1

16. LCD: 48 because 1/4= 12/48, 1/12=4/48, 11/16= 33/48 and they all share 48 as the denominator

17.  LCD: 168 because 5/56= 15/168, 7/24= 49/168, 7/12= 98/168, 5/42= 20/168

18. LCD: 30 because 2/1= 60/30, 1/5= 6/30, 1/10= 3/30, 5/6= 25/30