This preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Unformatted text preview: 15, 18, and 36 Use: Finding common denominators Example 5: Find the least common denominator (LCM) for 1 5 7 8 6 10 + + • Adding/Subtracting Fractions Step 1: Find a least common denominator Step 2: Change the numerator of each fraction accordingly Step 3: Add or subtract the numerators; keep the denominators unchanged Step 4: Reduce the answer, if possible Example 6: Work each problem. A. 7 2 18 27 + B. 7 11 15 27 + C. 21 13 16 10D. 7 5 8 8• Multiplying Fractions Step 1: Multiply numerators. Multiply denominators Step 2: Reduce the answer, if possible. Example 7: Multiply each. A. 1 2 5 3 × B. 5 2 8 3 × C. 8 35 15 16 × D. 1 10 5 3× ** 3 2 6 5 4 7 × You can use the cancelling method, if you know how to do it. • Dividing Fractions Step 1: Multiply the first number by the reciprocal of the second number. Step 2: Reduce your answer, if possible. Example 8: Find each answer. A. 3 7 2 6 ÷ B. 4 8 9÷...
View
Full Document
 Spring '08
 Staff
 Math, Factors, Prime Numbers, Elementary arithmetic, Greatest common divisor, Divisor, prime factors

Click to edit the document details