9 + (6 + 2 ×4) −329 + (6 + 8) −329 + 14 −923 −914FRACTIONSADDITION...
2. 9 + (6 + 2 ×4) −3
2
9 + (6 + 8) −32
9 + 14 −923 −914F
RACTIONS
Addition of FractionsTo add fractions, they must have a common denominator. The common denominator is a common multi-ple of the denominators. Usually, the least common multiple is used.Example
1
3
+
2
7
The least common denominator for 3 and 7 is 21.(
1
3
×
7
7
) + (
2
7
×
3
3
) Multiply the numerator and denominator of each fraction by the samenumber so that the denominator of each fraction is 21.
6
8
2
2
1
+
2
1
=
2
1
Add the numerators and keep the denominators the same. Simplify theanswer if necessary.Subtraction of FractionsUse the same method for multiplying fractions, except subtract the numerators.Multiplication of FractionsMultiply numerators and multiply denominators. Simplify the answer if necessary.3
3
0
4
×
1
5
=
2
Division of FractionsTake the reciprocal of (flip) the second fraction and multiply.3
÷
3
4
=
1
3
×
4
3
=
4
9
Examples