ABefore we can evaluate a sum or difference involving mixed numbers, the mixed numbers must first be rewritten as fractions.
BTo add or subtract fractions, they need to have the same denominator.
CBefore we can evaluate a sum or difference involving mixed numbers, the mixed numbers must first be rewritten as fractions.
A298 or 3 58
B3/10
C195 or 3 45
Practice makes perfect
Before we can evaluate a sum or difference involving mixed numbers, the mixed numbers must first be rewritten as fractions.
a bc
a* c+b/c
Simplify
1 12
1* 2+1/2
3/2
2 18
2* 8+1/8
17/8
When adding or subtracting fractions, they should have the same denominator. In this exercise, we have two fractions with different denominators.
3/2 + 17/8
Since 8 is a multiple of 2, we can multiply both the numerator and denominator of 32 by 4 to create a common denominator.
When adding or subtracting fractions, they should have the same denominator. In this exercise, we have three fractions with different denominators.
4/5 - 2/3 + 1/6
First, we can list the multiples of 5, 3, and 6.
Multiples of $5$:&5, 10, 15, 25, 30, ...
Multiples of $3$:&3, 6, 9, 12, 15, 18, &21, 24, 27, 30, ...
Multiples of $6$:&6, 12, 18, 24, 30, ...
Since 30 is a multiple of both 5, 3, and 6, we can first multiply both the numerator and denominator of 45 by 6 to create a common denominator.
Before we can evaluate a sum or difference involving mixed numbers, the mixed numbers must first be rewritten as fractions.
a bc
a* c+b/c
Simplify
5 35
5* 5+3/5
28/5
1 45
1* 5+4/5
9/5
When adding or subtracting fractions, they should have the same denominator. In this exercise, we have two fractions with the same denominator.
28/5-9/5
Let's simplify the expression!
