- Math
- Fractions can only be added or subtracted when denominators are the same
- Age 10-12
-
level: 6
- English
คำแนะนำของผู้เขียน
addition and subtraction
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- Math
- Fractions can only be added or subtracted when denominators are the same
- Age 10-12
- level: 6
- English
คำแนะนำของผู้เขียน
addition and subtraction