1. Explaining Fractions And Decimals
By : John Corbett

2. Fractions
Add
Subtract
Multiply
Divide

3. + Adding 1. Add the numerators 4/8 +3/8 4+3=7
4/8 +3/ =7
2. Keep the denominators the same
4/8+3/8= 7/8 +

4. - Subtracting Subtract the numerators 4/5- 3/5=1
2. Keep the denominators the same
4/5-3/5=1/5 -

5. x Multiplying Multiply the numerators. 5/7x3/7=15
2. Multiply the denominators.
5/7x3/7=15/49
3. Simplify if needed x

6. ÷ Dividing 1. Flip the last fraction 2/3÷3/4 2/3x4/3
2. Change the ÷ to a x sign
3. Now multiply and you get…
2/3x4/3=8/9 ÷

7. Decimals
Add
Subtract
Multiply
Divide (long division)

8. + Adding Line your decimals up 12.65 Add 16.90
Add
Remember to bring down your decimal +

9. - Subtracting Line your decimals up 20.65 Subtract -18.65 2.00
3. Remember to bring down your decimal -

10. x Multiplying 360 now becomes 3.60
Multiply the 2 numbers disregarding the decimals
2.4
x 2.5
120
+240
360
Now, move the decimal in your new number, over by the same number of digits as are on the numbers you multiplied
360 now becomes 3.60 x

11. Dividing (long division)
9.1 ÷ 7
2. Set your problem up for long division
3. Move the decimal straight up and divide normally
1.3
7)9.1 -7 21
-21 ÷