Question

What’s the least common denominator (LCD) for each group of fractions? a. 1⁄6 and 7⁄8 b. 3⁄4 and 7⁄10 c. 7⁄12, 3⁄8 and 11⁄36 d. 8⁄15, 11⁄30 and 3⁄5

Answer 1

Hey there!

$\frac{1}{6} And \frac{7}{8} \\ \\ LCD: 24 \\ \\ \\ \\ \frac{3}{4} And \frac{7}{10} \\ \\ LCD: 20 \\ \\ \\ \\ \frac{7}{12} , \frac{3}{8} And \frac{11}{36} \\ \\ LCD: 72 \\ \\ \\ \\ \frac{8}{15} , \frac{11}{30} , And \frac{3}{5} \\ \\ LCD: 30$

Basically "least common denominator" is the number that is the smallest that can be a common denominator to set off the other fractions

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