Problema Solution
Last Week, Sheri spent 2 1/2 hours on homework. Jane spent 1/4 as many hours as Sheri. How many hours did they both spend on homework in all?
Answer provided by our tutors
Sheri spent: 2 1/2 = (2*2 + 1)/2 = 5/2 hours
Jane spent: (1/4)*(5/2) = 5/8 hours
Altogether they spent:
5/2 + 5/8 = (5*4 + 5)/8 = 25/8 = 3 1/8 hr = 3 hr 7.5 min
Sheri and Jane together spent 3 hr 7.5 min on homework.