40.5k views
1 vote
3/7-2/14+1/21
What is the answer to this

User Rob Kam
by
3.7k points

2 Answers

3 votes
1/3

We’ll first reduce the second of the fractions and get a common denominator for the first 2 of 7. Then we’ll finish with the common denominator of 21:

3/7 - 2/14 + 1/21
= 3/7 - 1/7 + 1/21
= 2/7 + 1/21
Multiply the first fraction by 3/3
= 6/21 + 1/21
= 7/21
Reduce to 1/3
User Marcio Aguiar
by
4.7k points
5 votes

Answer:

1/3

Explanation:

Hope this is useful even though there isn't any working

User Miara
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4.3k points