Operations with Fractions-: Addition, Subtraction, Multiplication, Division TA
21 videos • 1 views • by Mr. Keith E. Chew--Math Extraordinaire Find the common denominators when adding and subtracting fractions. Use the criss cross shortcut method to add and subtract fractions. Simplify Fractions. Convert improper fractions into mixed numbers and vice versa. Multiply numerators and multiply denominators. Simplify by dividing the numerator and denominator by the greatest common factor (GCF). Cancel a common factor by in the numerator and denominator. Convert division to multiplication and change the division operation to multiplication and write the reciprocal of the second fraction using KCF.