Common Denominators
What number that can be used as a common denominator to rewrite the fractions 1/3 & 2/4
12 or 24
3/5 + 2/10=
8/10 or 16/20
2/4- 1/8=
3/8
Write a pair of equivalent fractions
for 3/4 and 5/10 using a common denominator of 20.
15/10 & 10/20
Of the students in Maria’s class,4/5 have dogs and 7/10 have cats. No students have both a dog and a cat. What fraction represents how many more students in Maria’s class have dogs?
1/10 more dogs
What number that can be used as a common denominator to rewrite the fractions 1/8 & 2/11
88
12/15 - 4/30=
20/30 or 40/60
5/7 - 3/5=
4/35
Write a pair of equivalent fractions
for 1/4 and 2/8 using a common denominator of 16.
4/16 & 4/16
Katie spent 5/8 hour painting and
3/5 hour drawing. How much time did she spend painting and drawing
49/40
What number that can be used as a common denominator to rewrite the fractions 1/12 & 2/11
132
8/9 + 2/3=
34/27 or 1 7/27
7/6- 4/12
10/12 or 20/24 or 26/36
Write a pair of equivalent fractions
for 2/4 and 2/6 using a common denominator of 48.
24/48 & 16/48
Mrs. Zuniga reads for 4/5 of an hour and Mr. Stotzer reads 1/7 of an hour. How much more time did Mrs. Zuniga read?
23/35 hours more