How do you get lowest common denominator?

Answer 1

You can get the LCD by multiplying both denominators that you are comparing by a number to get an equal denominator. Multiply the numerators by the same number as you multiplied the denominators by. Compare. Example: Compare 3/4 and 4/6. Find the LCD of 3/4 and 4/6. 3/4 = ____. 4/6 = ____. 4 and 6 can both go into 12. Multiply the numerator and denominator by the same number so the denominator is 12. These are equivalent fractions. 3/4 = _/12. 4x3=12. Multiply 3 times 3, too. 3x3=9. 3/4=9/12. 4/6 = _/12. 6x2=12. Multiply 4 times 2, too. 4x2=8. 4/6=8/12. 9/12 > 8/12. 3/4 > 4/6. In conclusion, the LCD is the least common multiple of two denominators that you can use to create equivelant fractions when comparing.