Multiplication and division of fractions
- 1. Multiplication And Division of Fraction 2/7 1/12 1/8 ½ 11/12 55/60
- 5. Ahhhhh…. This is our lesson for today
- 7. Divide:
- 9. = = = =
- 10. Consider the ff. situation. 2. Mirriam made 5 pizzas for some street children. She cut up each pizza into 8 triangular pieces. If a child can only take a piece, how many children can he feed?
- 12. Miriam made 5 pizzas for some street children. She cut up each pizza into 8 triangular pieces. If a child can only take a piece, how many children can he feed? 40 Since there are 8 eighths in one pizza, there will be 5 x 8 = 40 triangular pieces and hence, 40 children will be fed.
- 13. 1. To multiply fractions, simply multiply the numerators and multiply the denominators. 2. To divide fractions, simply apply the cross multiplication
- 14. 2. How many thirds are there in six-fifths?
- 15. OPERATIONS ON FRACTIONS I. To add or subtract similar fractions Add or subtract the numerators ay-ay alilay-alilay Then copy the common denominator Then simplify the result Ay- ay II. To add or subtract dissimilar fractions Times the LCD to each fraction ay – ay alilay-alilay Simplify and add or subtract the fractions All over the LCD Ay-ay……. III. In multiplying fractions Multiply the numerators ay – ay alilay - alilay Multiply the denominators Then simplify the result ay -ay IV. In dividing what they call fractions Apply the cross multiplication (2x)
- 16. . OPERATIONS ON FRACTIONS I. PERFORM THE INDICATED OPERATIONS OF THE FOLLOWING SIMILAR FRACTIONS a) 1/5 + 3/5 = b) 7/10 + 2/10 c) 5/15 + 6/15 d) 8/12 – 7/12 = e) 12/20 – 8/20 f) 15/21 – 9/21 II. FIND THE SUM AND DIFFERENCE OF THE FOLLOWING DISSIMILAR FRACTIONS 15/20 + 7/10 = b) 9/16 + 3/8 = c) 4 + ¾ = d) 8/9 – 2/6 = e) 13/15 – 9/30 f) 16 – 10 /14 = III. FIND THE PRODUCT a. 2/9 x 5/6 = b) 3/7 x 2/5 = c) 8 x 5/16 = d) 6/8 x 4/15 = IV. FIND THE QUOTIENT a) 14/15 ÷ 5/7= b) 18 ÷ 4/9= c) 18 ÷ 4/9 = d) 21/25 ÷ 5/7 =