Question

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

Answer 1

4/5 of a spool is equivalent to 8/10. 1/2 is equivalent to 5/10. So 8/10-5/10 is 3/10. His is reasonable