Decimals & fractionsGrade 5
Fractions with Unlike Denominators practice
Add and subtract fractions with different denominators, such as 1/3 + 4/9 = 7/9, by finding a common denominator first.
Example problems
1
2
−
2
5
＝
1
0
1
1
3
＋
4
9
＝
9
7
1
4
＋
3
7
＝
2
8
1
9
How a practice round works
A round has 10 problems from this skill. Type the digits into the dotted boxes; if a digit is wrong, you simply try again. Get 5 of your last 6 problems right on the first try to master the skill, then keep practicing to earn up to three stars.
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