Daughter is in 5th grade and I have no idea how to solve this math problem!
5 3/4 – 6 3/4
Obv you cannot subtract 5 from 6. You also can’t borrow the 3 from the 5 and make it a new mixed number. What do you borrow from? I’ve googled and seriously cannot figure this out.
In: 0
While many people have explained the general method of converting mixed numerals to a common base , this particular problem is much easier.
5 and 3/4 minus 6 and 3/4
The fractions are the same!
( 5 + 3/4 ) – ( 6 + 3/4 )
5 + 3/4 – 6 – 3/4
(3/4 – 3/4) + 5 – 6
0 + 5 – 6
5 – 6
Answer is -1 without really needing to understand fractions at all.
And it’s often good to check the results of an algorithm with common sense — when adding or subtracting mixed numbers check if the result is close what you expect the answer to be.
Latest Answers