add and subtract similar fractions

SUBTRACTS SIMPLE
FRACTIONS AND
MIXED NUMBERS
WITHOUT
REGROUPING
M6NS-Ia-86.1

IMPORTANT TERMS TO REMEMBER
IN FRACTIONS
 SIMILAR FRACTIONS
- these are fractions with the same denominators
 DISSIMILAR FRACTIONS
- these are fractions with different denominators
 MIXED NUMBERS
- is composed of a whole number and a fraction

Rules in Adding and Subtracting Simple
Fractions Without Regrouping
- add or subtract the numerators directly and
copy the denominator
- reduce the fraction to its lowest form if
possible
examples:
1.)
6
10
+
2
10
=
8
10
or
4
5
2.)
8
15
−
5
15
=
3
15
or
1
5

Rules in Adding and Subtracting Mixed
Numbers Without Regrouping
- add or subtract the whole numbers first
- add or subtract the numerators and copy
the denominator
- reduce the fraction to its lowest form if
possible
examples:
1.) 3
6
10
+ 4
2
10
= 7
8
10
or 7
4
5
2.) 10
8
15
− 7
5
15
= 3
3
15
or 3
1
5

Activity 1: (done in paper and pencil )
Add or subtract.
1.)
9
14
−
5
14
=
4
14
𝑜𝑟
2
7
2.) 1
2
8
+ 4
3
8
= 5
5
8
3.) 12
5
12
− 5
3
12
= 7
2
12
𝑜𝑟 7
1
6
4.)
7
16
+
5
16
=
12
16
𝑜𝑟 3/4

Activity 2: (using illustration board and chalk)
Add or subtract the following.
1.)
5
8
−
3
8
=_________ 2.)
9
18
+
4
18
= ______________
3.) 5
2
8
+ 6
3
8
= ___________ 4.) 15
18
20
− 13
10
20
= _______
5.) 20
16
30
− 18
15
30
= _______ 6.)
18
34
−
15
34
= _______________

Direction: Add or subtract the
following fractions or mixed
numbers.
1.) 12
3
4
− 10
2
4
= _____________ 2.)
8
15
+
7
15
= ______________
3.) 7
5
12
+ 3
3
12
= ______________ 4. )
20
25
−
15
25
= _____________
5.)
13
18
+
3
18
= _________________

Assignment:
Study in advance about
adding or subtracting
simple fractions and mixed
numbers with regrouping.

add and subtract similar fractions

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