Math Homework Tips

Divide Mixed Numbers—Rewrite mixed numbers as improper fractions. For example: 9 1/3 = 28/3. After changing the mixed numbers into improper fractions, then bring down the first fraction, change from division to multiplication, and use the reciprocal of the last fraction. Simplify before multiplying and then multiply.

Example:

9 1/3 divided by 1 1/6 becomes

28/3 divided by 7/6

28/3 X 6/7 = 4/1 x 2/1 = 8/1 or 8

Solve Multiplication and Division Equations—To solve multiplication and division equations: First, get the variable by itself on one side of the equal side by performing the inverse operation. For example:

3d = 21

d = 21 divided by 3

d = 7

Check by replacing the variable with the answer. 3 x 7 = 21

21 = 21

d divided by 15 = 4

d= 4 x 15

d = 60

60 divided by 15 = 4

4 = 4