Equivalent Fractions
Simplest Form
LCM
Common Denominators
Add/Subtract Fractions
100
Find an equivalent fraction: 6/10
3/5, 12/20, 18/30, 24/40, 30/50
100
Write the fraction in simplest form: 3/6
1/2
100
Find the LCM of each pair of numbers: 2 and 3
6
100
Find a common denominator for each pair of fractions: 2/3 and 3/4 Then write the new fraction.
Common Denominator: 12 New Fractions: 8/12 and 9/12
100
Find each sum. Simplify if necessary. 1/9 + 5/6
1/9 + 5/6 → 2/18 + 15/18 = 17/18
200
Find an equivalent fraction: 5/7
10/14, 15/21, 20/28, 25/35
200
Write the fraction in simplest form: 14/21
2/3
200
Find the LCM of each pair of numbers: 3 and 5
15
200
Find a common denominator for each pair of fractions: 1/2 and 2/5 Then write the new fraction.
Common Denominator: 10 New Fractions: 5/10 and 4/10
200
Find the difference. Simplify if necessary. 1/3 - 1/6
1/3 - 1/6 → 2/6 - 1/6 = 1/6
300
Find an equivalent fraction by dividing: 3/15
1/5
300
Write the fraction in simplest form: 4/12
1/3
300
Find the LCM of each pair of numbers: 8 and 12
24
300
Find a common denominator for each pair of fractions: 5/8 and 3/4 Then write the new fraction.
Common Denominator: 8 New Fractions: 5/8 and 6/8
300
Find the sum. Simplify if necessary. 1/12 + 2/3
1/12 + 2/3 → 1/12 + 8/12 = 9/12 = 3/4
400
Find an equivalent fraction by multiplying: 2/4
4/8, 6/12, 8/16, 10,20
400
Write the fraction in simplest form: 9/81
1/9
400
Find the LCM of each pair of numbers: 3 and 10
30
400
Find a common denominator for each pair of fractions: 1/3 and 4/5 Then write the new fraction.
Common Denominator: 15 New Fraction: 5/15 and 12/15
400
Find the difference. Simplify if necessary. 5/6 - 1/3
5/6 - 1/3 → 5/6 - 2/6 = 3/6 = 1/2
500
Find an equivalent fraction by dividing: 28/36
7/9, 14/18
500
Write the fraction in simplest form: 33/77
3/7
500
Find the LCM of each pair of numbers: 12 and 16
48
500
Find a common denominator for each pair of fractions: 7/9 and 1/6 Then write the new fraction.
Common Denominator: 18 New Fraction: 14/18 and 3/18
500
Find the difference. Simplify if necessary. 4/7 - 1/3
4/7 - 1/3 → 12/21 - 7/21 = 5/21