3/6
-
3/8
=
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Subtract a Fraction from Unlike Fraction
Name
Grade
School
Date
Questions10
Score
1
2
8/7
-
3/9
=
3
4/3
-
8/7
=
4
3/5
-
1/2
=
5
10/8
-
4/9
=
6
10/5
-
4/6
=
7
6/8
-
5/9
=
8
8/3
-
7/10
=
9
10/8
-
9/10
=
10
5/4
-
3/8
=
Answers Key
1
3/6
-
3/8
=
1/8
find the LCM for unlike denominators
LCM (6, 8) = 24
36
38
36
36
simplify the above fraction
GCF(3, 24) = 3
324
36
LCM (6, 8) = 24
36
=
3 x 246 x 24 =
3 x 424 =
122438
=
3 x 248 x 24 =
3 x 324 =
92436
-
38 =
1224 -
924 =
12 - 92436
-
38 =
324simplify the above fraction
GCF(3, 24) = 3
324
=
3 ÷ 324 ÷ 3
=
1836
-
38 =
182
8/7
-
3/9
=
17/21
find the LCM for unlike denominators
LCM (7, 9) = 63
87
39
87
87
simplify the above fraction
GCF(51, 63) = 3
5163
87
LCM (7, 9) = 63
87
=
8 x 637 x 63 =
8 x 963 =
726339
=
3 x 639 x 63 =
3 x 763 =
216387
-
39 =
7263 -
2163 =
72 - 216387
-
39 =
5163simplify the above fraction
GCF(51, 63) = 3
5163
=
51 ÷ 363 ÷ 3
=
172187
-
39 =
17213
4/3
-
8/7
=
4/21
find the LCM for unlike denominators
LCM (3, 7) = 21
43
87
43
43
LCM (3, 7) = 21
43
=
4 x 213 x 21 =
4 x 721 =
282187
=
8 x 217 x 21 =
8 x 321 =
242143
-
87 =
2821 -
2421 =
28 - 242143
-
87 =
4214
3/5
-
1/2
=
1/10
find the LCM for unlike denominators
LCM (5, 2) = 10
35
12
35
35
LCM (5, 2) = 10
35
=
3 x 105 x 10 =
3 x 210 =
61012
=
1 x 102 x 10 =
1 x 510 =
51035
-
12 =
610 -
510 =
6 - 51035
-
12 =
1105
10/8
-
4/9
=
29/36
find the LCM for unlike denominators
LCM (8, 9) = 72
108
49
108
108
simplify the above fraction
GCF(58, 72) = 2
5872
108
LCM (8, 9) = 72
108
=
10 x 728 x 72 =
10 x 972 =
907249
=
4 x 729 x 72 =
4 x 872 =
3272108
-
49 =
9072 -
3272 =
90 - 3272108
-
49 =
5872simplify the above fraction
GCF(58, 72) = 2
5872
=
58 ÷ 272 ÷ 2
=
2936108
-
49 =
29366
10/5
-
4/6
=
4/3
find the LCM for unlike denominators
LCM (5, 6) = 30
105
46
105
105
simplify the above fraction
GCF(40, 30) = 10
4030
105
LCM (5, 6) = 30
105
=
10 x 305 x 30 =
10 x 630 =
603046
=
4 x 306 x 30 =
4 x 530 =
2030105
-
46 =
6030 -
2030 =
60 - 2030105
-
46 =
4030simplify the above fraction
GCF(40, 30) = 10
4030
=
40 ÷ 1030 ÷ 10
=
43105
-
46 =
437
6/8
-
5/9
=
7/36
find the LCM for unlike denominators
LCM (8, 9) = 72
68
59
68
68
simplify the above fraction
GCF(14, 72) = 2
1472
68
LCM (8, 9) = 72
68
=
6 x 728 x 72 =
6 x 972 =
547259
=
5 x 729 x 72 =
5 x 872 =
407268
-
59 =
5472 -
4072 =
54 - 407268
-
59 =
1472simplify the above fraction
GCF(14, 72) = 2
1472
=
14 ÷ 272 ÷ 2
=
73668
-
59 =
7368
8/3
-
7/10
=
59/30
find the LCM for unlike denominators
LCM (3, 10) = 30
83
710
83
83
LCM (3, 10) = 30
83
=
8 x 303 x 30 =
8 x 1030 =
8030710
=
7 x 3010 x 30 =
7 x 330 =
213083
-
710 =
8030 -
2130 =
80 - 213083
-
710 =
59309
10/8
-
9/10
=
7/20
find the LCM for unlike denominators
LCM (8, 10) = 40
108
910
108
108
simplify the above fraction
GCF(14, 40) = 2
1440
108
LCM (8, 10) = 40
108
=
10 x 408 x 40 =
10 x 540 =
5040910
=
9 x 4010 x 40 =
9 x 440 =
3640108
-
910 =
5040 -
3640 =
50 - 3640108
-
910 =
1440simplify the above fraction
GCF(14, 40) = 2
1440
=
14 ÷ 240 ÷ 2
=
720108
-
910 =
72010
5/4
-
3/8
=
7/8
find the LCM for unlike denominators
LCM (4, 8) = 8
54
54
54
LCM (4, 8) = 8
54
=
5 x 84 x 8 =
5 x 28 =
10854
-
38 =
108 -
38 =
10 - 3854
-
38 =
78Subtracting Fractions with Unlike Denominators Worksheet
Subtracting unlike fraction worksheet with answers to practice & learn 6th grade math problems is available online for free in printable & downloadable (pdf & image) format. Tap on PRINT, PDF or IMAGE button to print or download this grade-6 fractions worksheet to practice subtracting fractions with different denominators.
How to Use this Worksheet
In this sixth grade fraction worksheet, students are required to find the difference between two fractions with different denominators. For subtracting fractions with unlike denominators, find the LCD of denominators, multiply LCD with both numerator and denominator of each fraction, simplify the fractions to have equal denominators and find the difference between the numerators. The difference between the numerators divided by the common denominator is the resulting difference of two unlike fractions.
Answers KeyTeachers, parents or students can check or validate the solved questions by using the corresponding answers key which comprises the step by step work on how to subtract a fraction from unlike fraction.
Generate More WorksheetsStudents, teachers or parents can generate unlimited set of questions and answers by using this "NEW WORKSHEET" button to prepare exam, assignments, classwork or homework problems on unlike fractions subtraction by using LCM or LCD method.
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