Adding And Subtracting Unlike Fractions: Videos & Practice Problems
Adding And Subtracting Unlike Fractions means working with fractions that have different denominators, so the first step is to find the least common denominator or LCD. The LCD can be found by listing multiples or by using prime factorization and taking the product of the unique prime factors in the denominators. This creates a common denominator so the fractions can be rewritten as equivalent fractions.
After rewriting each fraction with the same denominator, the fractions become like fractions. Then add or subtract only the numerators and keep the common denominator. In symbols, \(\frac{a}{b}\pm\frac{c}{d}=\frac{ad\pm bc}{bd}\) describes the idea, while the preferred denominator is usually the least common denominator. Always multiply the numerator and denominator by the same constant, combine carefully, and write the final result in simplest form.
Adding And Subtracting Unlike Fractions
Add or subtract the fractions below and simplify your result.
Add or subtract the fractions below and simplify your result.
Add or subtract the fractions below and simplify your result.
Add or subtract the fractions below and simplify your result.
Add or subtract the fractions below and simplify your result.
a
Adding And Subtracting Unlike Fractions Example 1
Adding And Subtracting Unlike Fractions Example 2
Adding And Subtracting Unlike Fractions Example 3
