When you subtract mixed numbers, how do you know when you need to regroup?

When you subtract mixed numbers, how do you know when you need to regroup?
in Pre-Algebra Answers by

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
To avoid this verification in future, please log in or register.

1 Answer

You need to group common denominators together in order to add or subtract them.

by Level 10 User (55.7k points)

Related questions

2 answers
solve: 4 5/16 + 3 3/16
asked Nov 16, 2012 in Geometry Answers by anonymous | 981 views
1 answer
how do you subtract fractions and mixed numbers
asked Nov 28, 2011 in Algebra 1 Answers by anonymous | 1.2k views
1 answer
how many times do u need to regroup to add 347 to 276
asked Sep 22, 2014 in Other Math Topics by anonymous | 2.5k views
1 answer
subtract mixed numbers
asked Apr 21, 2013 in Pre-Algebra Answers by anonymous | 877 views
0 answers
Need to know which group of numbers are finite sets
asked Jun 27, 2012 in Algebra 1 Answers by jashells Level 1 User (120 points) | 531 views
Welcome to MathHomeworkAnswers.org, where students, teachers and math enthusiasts can ask and answer any math question. Get help and answers to any math problem including algebra, trigonometry, geometry, calculus, trigonometry, fractions, solving expression, simplifying expressions and more. Get answers to math questions. Help is always 100% free!

Most popular questions within the last 3000 days

  1. 50+50-25X0+2+2= (19)
  2. it takes 10 road workers 5 days to complete a road repair when working 2 hours a day.Working at the same pace,how many days will it take 2 people working 5 hours a day to finish it? (3)
  3. Solve 15 -1(12รท4+1)? (4)
  4. 8:4(5+2) (3)
  5. How can i represent 1/3; 3/3; 7/3; 10/3 and 15/3 on a number line? (1)

Most popular tags

87,516 questions
100,279 answers
2,420 comments
732,270 users