Final answer:
To find equivalent fractions for 2/7 and 5/12 using the least common denominator, calculate the LCD, which is 84. Then, create equivalent fractions by multiplying the numerators and denominators to get 24/84 for 2/7 and 35/84 for 5/12.
Step-by-step explanation:
To find equivalent fractions for 2/7 and 5/12 using the least common denominator (LCD), you first need to find the LCD for the two denominators 7 and 12. The LCD is the smallest number that both denominators can divide into evenly, which in this case is 84. Now, to get equivalent fractions, multiply the numerator and denominator of each fraction by a number that will make the denominator equal to 84.
For 2/7, you would multiply both the numerator (2) and the denominator (7) by 12, since 7 * 12 equals 84. This gives us the equivalent fraction of 24/84.
For 5/12, you would multiply both the numerator (5) and the denominator (12) by 7, since 12 * 7 equals 84. This gives us the equivalent fraction of 35/84.
Therefore, the equivalent fractions for 2/7 and 5/12 using the least common denominator are 24/84 and 35/84, respectively.