3. Fraction, Percent and Decimals in the Business

Application of fractions, decimals and percent in the business.

1. Fundamental Operations involving Fractions, Decimals and Percent in Business Applications

2. Lesson Objective students should be able to apply fractions, decimals, and percent in solving business problems and problems in real-life situations.

3. Applications of Fractions 1. Lilia owns three parcels of land of 12 , 8 , and 15 hectares. If she sells a total of 18 hectares , how many hectares will be left ?  

4. = (12 + 8 + 15) + 18 = 35 + 18 = 35 + = 36 + = (36 18) + = 18 hectares  

5. Applications of Fractions 2. Juanita sells different types of cloth. She cuts a bolt of cloth containing 100 yards into single-pants cut of 1 yards each . Into how many pieces was the bolt cut? 80 pieces  

6. b. If Juanita sells the cloth at ₱150 per cut, how much will the entire bolt sell? 80 ₱150 = 12,000 c. If Juanita bought the bolt at ₱90 per yard, how much gross profit will she earn? Gross profit = Total sales – Total cost = ₱12,000 – (100 yd at ₱90/ yd ) = ₱12,000 – ₱9,000 = ₱3,000  

7. Applications of Fractions 3. A carpenter can finish a stool in 1 hours. If he works 8 hours a day, 5 days a week, how many stools can he finish in a week’s time? stools/day stools/day × 5 days/week = 32 stools/week  

8. Applications of Fractions 4. Dr . Rolando Lopez bought a dentist’s chair for ₱ 50,000. He paid of this amount as down payment. His mother gave him of the down payment . a. How much was the down payment?  

9. b. How much did his mother give him? Amount from his mother = × down payment = × ₱30,000 = ₱7,500 c. What fractional part of the total cost of the chair was the amount g iven him by his mother? = =  

10. d. How much of the down payment was shouldered by Dr. Lopez? = Down payment – his mother’s share = ₱30,000 – ₱7,500 = ₱22,500 e. What fractional part of the total cost of the chair was the down payment paid by Dr. Lopez? = =  

11. f. What fractional part of the total cost of the chair would Dr. Lopez pay? = 1 fractional part paid by his mother = = =