1. Stephanie sold 3/5 of 45 candy bars: (3/5) * 45 = 27. Julia sold 3/4 of 40 candy bars: (3/4) * 40 = 30. Total sold: 27 + 30 = 57.
2. Jon's study time: Monday 3/4, Tuesday 2/3, Wednesday 1, Thursday 4/6, Friday 4/6. Convert to common denominator (12): 9/12 + 8/12 + 12/12 + 8/12 + 8/12 = 45/12 = 3 3/4 hours.
3. Total slices from 5 pies: 5 * 8 = 40. Slices left: 4 + 6 + 2 + 7 + 1 = 20. Slices eaten: 40 - 20 = 20. Fraction eaten: 20/40 = 1/2.
4. Pile one: 2/6 lb. Pile two: 7/8 lb. Pile three: 1 1/2 lb = 3/2 lb. Pile four: 2 * (2/6) = 4/6 = 2/3 lb. Total weight: 2/6 + 7/8 + 3/2 + 2/3. Convert to common denominator (24): 8/24 + 21/24 + 36/24 + 16/24 = 81/24 = 3 3/8 lbs.
5. Glass marbles: (2/5) * 175 = 70. Composite marbles: (1/5) * 175 = 35. Epoxy marbles: 175 - 70 - 35 = 70.
Parent Tip: Review the logic above to help your child master the concept of adding fractions with like denominators word problems worksheet.