3 years ago

What is 2/7 plus 8/21

Mathematics

1 answer:

Alchen [17]3 years ago

7 0

Answer:

2/3

Step-by-step explanation

21 is a multiple of 7. To add fractions you must have the same denominator. 7 times 3 is 21. So multiple the whole fraction, both numerator and denominator(2 and 7) by 3 to get 6/21. From there just add 6/21 and 8/21 together to get 14/21 then in they have a GCF(greatest common factor), which in this case is 7. Divide it by the GCF to simplify the fraction.

Hope this helps!

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