Do you use the greatest common factor or the least common multiple to add to fractions? In this example what is it? 4/15+5/6

Question

Savanah Ellis

Mathematics

16 June, 14:40

Do you use the greatest common factor or the least common multiple to add to fractions? In this example what is it? 4/15+5/6

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Answers (1)

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Iris Hester · Answer 1

The least common multiple, but you can use the greatest common factor, but at the end you have to simplify for it to be correct. 1 3/30

Step-by-step explanation: 4/15+5/6

Change 15 into a 30 by multiplying 2 to both sides.

Change 6 into a 30 by multiplying 5 to both sides.

so the new fractions are 8/30+25/30=33/30

The final fraction is 1 3/30.