Question

tom exercised 4/5 hour on monday and 5/6 hour on tuesday. 4/5=4/5×?/?=?/? write equivalent fractiond w a common denominator.. how much time did tom spend exercising on monday and tuesday? how much longer did tom spend exercising on tuesday than on monday?

Answer 1

To find the equivalent fractions, multiply each fraction by the others denominator...
4/5 = 4/5 × 6/6 = 24/30
5/6 = 5/6 × 5/5 = 25/30

Since an hour is 60 minutes and our fractions are in 30 min increments, multiply each by 2/2 to find how long he exercised each day.

Monday = 24/30×2/2=48/60 so 48 minutes.

Tuesday = 25/30×2/2=50/60 so 50 minutes.

He spent 50-48 = 2 minutes longer on Tuesday exercising.