Home
Grade 1Grade 2Grade 3Grade 4Grade 5Grade 6Grade 7Grade 8Grade 9Grade 10Grade 11Grade 12Math Themes
Explorers (Grades 1-3)Explorers Elite (1-3)Navigators (Grades 4-6)Navigators Elite (4-6)Challengers (Grades 7-9)Challengers Elite (7-9)Scholars (Grades 10-12)Scholars Elite (10-12)Schedule an Evaluation
Mobius MethodFlexible ClassesCompanySupport
Pricing
Ctrl+k
Sign InJoin

Fraction Subtraction - Find Common Denominator - Mixed - Two Changed Denominators

Level 2

This math topic focuses on advanced fraction subtraction, specifically requiring the identification of the lowest common denominator (LCD) for subtraction problems involving mixed fractions with two denominators that require adjustment. The problems involve several pairs of fractions, and the user must calculate or recognize the LCD necessary to perform the subtraction operation effectively.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

more
WorksheetView

Fraction Subtraction - Find Common Denominator - Mixed - Two Changed Denominators Worksheet

Mobius Math Academy logo
Fraction Subtraction - Find Common Denominator - Mixed - Two Changed Denominators
1
What lowest common denominator would you use to subtract these fractions?
A LaTex expression showing 36 over 7 - 1 over 3
a
21
b
15
c
19
d
17
e
1
f
35
2
What lowest common denominator would you use to subtract these fractions?
A LaTex expression showing 33 over 11 - 1 over 5
a
85
b
5
c
60
d
45
e
55
f
90
3
What lowest common denominator would you use to subtract these fractions?
A LaTex expression showing 31 over 3 - 13 over 5
a
5
b
10
c
8
d
15
e
18
f
17
4
What lowest common denominator would you use to subtract these fractions?
A LaTex expression showing 21 over 2 - 2 over 3
a
5
b
15
c
10
d
6
e
14
f
2
5
What lowest common denominator would you use to subtract these fractions?
A LaTex expression showing 35 over 11 - 21 over 3
a
33
b
3
c
15
d
9
e
42
f
60
6
What lowest common denominator would you use to subtract these fractions?
A LaTex expression showing 12 over 3 - 1 over 2
a
3
b
10
c
2
d
7
e
13
f
6
7
What lowest common denominator would you use to subtract these fractions?
A LaTex expression showing 34 over 11 - 11 over 2
a
20
b
18
c
38
d
16
e
22
f
40
8
What lowest common denominator would you use to subtract these fractions?
A LaTex expression showing 18 over 11 - 1 over 3
a
6
b
60
c
57
d
3
e
21
f
33