Adding and SubtractingQuick and Dirty
Fractions Method!
Functional Mathematics Level 2: Add and subtract fractions- add and subtract using halves, thirds, quarters, fifths and tenths
You can add two fractions by doing three multiplications and an addition!
35
23
1915
9 10
15
+
An example that has denominators with a common factor…
56
49
6954
45 24
54
+
You had to cancel down at the end because of the common factor…
Mixed numbers?Just convert to improper fractions and carry on…
Subtraction?Just subtract the top totals instead of adding…
45
72
Answer on next slide…
Make up some more questions and check them with your calculator