Question

Jamie had 4/5 of a spool of twine. He then used 1/2 of a spool of twine to make friendship knots. He claims to have 3/10 of the original spool of twine left over. Explain how you know whether Jamie’s claim is reasonable.

Answer 1

4/5 - 1/2 = 8/10 - 5/10 = 3/10