Q: Is there an official PDF for the Lesson 16 answer key? A: Yes. Great Minds (publisher of Eureka Math) provides answer keys to teachers. Parents can find unofficial but verified keys on sites like CCSSMathAnswers.com or through the EngageNY archived materials.
Q: My child’s homework has different numbers. Is this the wrong key? A: Eureka Math has two main versions (Common Core and TEKS), and some teachers modify problems. Focus on the method, not the exact numbers. If the numbers differ, still follow the steps above.
Q: What if the answer key shows an improper fraction or mixed number? A: Lesson 16 stays in proper fractions. If your answer is >1 (e.g., 9/8), check your original problem — you may have multiplied the wrong way.
Question: Kevin has 4/5 of a yard of fabric. He uses 3/4 of the fabric to make a pillow. How many yards of fabric did Kevin use?
Answer: 3/5 yard
Explanation: 4/5 × 3/4 = (4×3)/(5×4) = 12/20 = 3/5.
Lesson 16 homework isn’t abstract. When you calculate a 20% off sale (( \frac15 ) off), when you measure ( \frac23 ) cup of flour, or when you figure out how much paint is left in ( \frac34 ) of a gallon — you’re doing exactly what Lesson 16 practices.
A common mistake is using the answer key to copy answers. Here is a parent-approved method for using the key to actually teach:
Question: A recipe calls for 2/3 cup of sugar. If you want to make 1/2 of the recipe, how much sugar do you need? Eureka Math Lesson 16 Homework 5.4 Answer Key
Answer: 1/3 cup
Explanation: Multiply 2/3 × 1/2 = (2×1)/(3×2) = 2/6 = 1/3.
1. A recipe calls for ( \frac23 ) cup of sugar. You want to make ( \frac14 ) of the recipe. How much sugar do you need?
2. Emma ran ( \frac34 ) mile. She walked ( \frac12 ) of that distance. How far did she walk? Q: Is there an official PDF for the Lesson 16 answer key
3. A rectangle has length ( \frac56 ) m and width ( \frac35 ) m. What is its area?
4. There is ( \frac78 ) of a pizza left. If ( \frac23 ) of the leftovers are eaten, what fraction of the whole pizza is eaten?
5. John has ( \frac56 ) hour of free time. He spends ( \frac34 ) of it playing outside. How many hours does he play outside?