When the numerator and denominator have no common factors other than one, then the fraction is in simplest form.
Lessons for this standard
Resources cannot be aligned to this standard, browse sub-standards to find lessons.
Similar standards in other grades
Students should be encouraged to observe and state what happens as you add more sharers, noticing that when more sharers are added, the smaller the share will be for each person.
Fraction models that can be continuously divided should be used at this grade (e.g., cookies, brownies). It is important to use models that can be continuously divided when there are remainders so those remainders can be cut into as many equal parts as needed.
The problem-solving process is enhanced when students create and solve their own practical problems and model problems using manipulatives and drawings.
Solve problems that involve adding and subtracting with fractions having like and unlike denominators whose denominators are limited to 2, 3, 4, 5, 6, 8, 10, and 12, and simplify the resulting fraction using common multiples and factors.
The fraction 3/4 may be interpreted as the amount of cake each person will receive when 3 cakes are divided equally among 4 people.