Subtract Unlike Fractions

Rename, then separate the parts.

Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.

What children learn in Level 62

Subtracting works the same way. The pieces must match before you take any away. Let's solve 3 fourths minus 1 third.
3 and 4 both go into 12. So 3 fourths is 9 twelfths, and 1 third is 4 twelfths.
Take away the tops. 9 twelfths minus 4 twelfths is 5 twelfths.
Check by adding: 5 twelfths plus 4 twelfths is 9 twelfths. It works!

Georgia's K-12 Mathematics Standards:

5.NR.3.3 — Model and solve problems involving addition and subtraction of fractions and mixed numbers with unlike denominators.