Question

Jonah divided 15/20 by 3/4. He got an answer of 45/80 = 9/16. Is he correct? Explain.

Answer 1

Jonah's answer is incorrect. The correct answer to 15/20 divided by 3/4 is 1, as you multiply 15/20 by the reciprocal of 3/4, resulting in 60/60 which simplifies to 1.

Step-by-step explanation:

No, Jonah's calculation of 15/20 divided by 3/4 resulting in 45/80 or 9/16 is incorrect. When dividing fractions, you should multiply by the reciprocal of the divisor. Here's the correct process:

1. Convert the division into a multiplication problem by multiplying 15/20 by the reciprocal of 3/4, which is 4/3.
2. Multiply the numerators together: 15 × 4 equals 60. Multiply the denominators together: 20 × 3 equals 60.
3. The resulting fraction is 60/60 which simplifies to 1.

Therefore, the correct answer to 15/20 divided by 3/4 is 1, not 9/16.

Answer 2

No Jonah is incorrect,

15/20 stays the same and 3/4 turns into 15/20 then factor the numerator and denominator and cancel the common factors