Ask
your own question, for FREE!
Mathematics
30 Online
how do you add fractions?
Still Need Help?
Join the QuestionCove community and study together with friends!
Do you have an example I could help you with? You need to find a common denominator (the number on the bottom).
Here is a quick & easy shortcut for adding any fractions a/b + c/d. Start with d (mandatory) and cross multiply, giving da. Then cross multiply the other way, giving bc. Add (or subtract -- this works for subtraction too) these two results. This is the top of the answer. For the bottom, just multiply straight across, giving bd. The result, then, is (da + bc) / bd. Just memorize the process, not this formula. Example: 2/5 + 4/9. The top is given by (9 x 2 + 5 x 4), or 38. The bottom is given by 5 x 9 or 45. Thus the answer is 38/45. Always check to see if the answer can be simplified (reduced).
Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!
Join our real-time social learning platform and learn together with your friends!
Join our real-time social learning platform and learn together with your friends!
Latest Questions
XShawtyX:
Helpud83dude4f All this graphing shi hurts my head like how tf do u do this????
Jasonisyours:
What were the key causes of the French Revolution in 1789?
brianagatica14:
A phone company charges $2 for the first five minutes of a phone call and 30 cents per minute thereafter.
CherryLover:
not sure if ya'll hear of this but last year there was this girl and her name is Aubreigh Wyatt and she was bullied by a group of people and they hated her
ctomk3743:
It's another song I had in mind (please no negative comments) I walk through the rain at night as the wind blows hard and the rain pours down on me.
2 hours ago
1 Reply
1 Medal
2 hours ago
2 Replies
4 Medals
1 hour ago
5 Replies
3 Medals
2 hours ago
41 Replies
3 Medals
1 day ago
8 Replies
7 Medals