mathematics

1. Lesson 1 - Adding Similar
Fractions in Simple or Mixed
Forms with Regrouping

2. DRILL
Give the simplest form.

3. 5
10
3
9
4
10
8
10
3
15
5
15
10
20
2
8

4. What is the sum of this model?
.

5. In what instances in daily
living you encounter
addition of fraction and
mixed numbers?

6. Mang Justo milked his carabao. He got 3
½ liters of milk from one carabao and 4
1/4 liters from the other. How much milk
did he get in all?
• What are the given?
• What is asked?
• What number sentence can we use to solve
the problem?
Problem1

7. What if the next day, he got 2 ¾
liters and 5 2/5 liters of milk.
How much milk did he get in
two days?
Problem 2

8. GROUP ACTIVITY

9. What did you do to arrive at an
answer to each problem?

10. Add. Reduce the answer to lowest
term.
1) + 2) +
3) + +
1
4
3
5
3
4
2
3
3
10
1
2
5
8

11. Add. Reduce the answer to lowest
term.
4) +
5) +
6
3
8
9
1
2
23
7
12
18
2
3

12. Solve the problems correctly.
1. Tina spends hour washing the
dishes and hour cleaning the
kitchen.
How many hours does she spend
in doing all the chores in the kitchen?
2
8
5
22

13. Solve the problems correctly.
2. Rey consumed liters of white
paint and liters of red paint to repaint
the fence. How much paint did he use
altogether ?
2
3
4
1
2
3

14. GENERALIZATION
How do we add dissimilar
fraction with regrouping?

15. • Adding dissimilar fractions with regrouping:
1. Use LCD to write equivalent
fractions.
2. Add the fractions and add the whole
numbers.
3. When the fraction in the sum is
improper fraction change it to mixed
number.
4. Reduce the answer to lowest term
whenever possible.

16. Complete the pyramid by filling in the boxes
with the sum of of the two fractions
below each box..
.
1
1
5
3
1
8
2
1
12
4
1
10

17. ENRICHMENT
1. Percy spent 1/4 of his money on a
food and another 3/10 of his money
on a drink.
a. What fraction of his money did
he spend in total?
b. What fraction of Percy’s money
was left?

18. 2. Sally has a piece of cloth. She used
1/3 of the cloth to make a pillow
cover and another 4/7 of the cloth to
make a tablecloth.
a. What fraction of the cloth was
used altogether for the pillow cover
and tablecloth?
b. What fraction of the cloth was left
over?

19. 3. A container is 1/3 full of water and 1/4
full of oil. What fraction of the container is
empty?
4. Kathy spent 5/8 of her money on books
and another 1/6 of her money on
stationeries. What fraction of Kathy’s
money was left?
5.Carl used 2/9 of piece of string to tie a
parcel and another 1/4 of the string to tie
a box. What fraction of the string was
left?