I will be able to add and subtract fractions. Adding and Subtracting Fractions Learning Target.
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I will be able to add and subtract fractions. Adding and Subtracting Fractions Learning Target
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Transcript of I will be able to add and subtract fractions. Adding and Subtracting Fractions Learning Target.
I will be able to add and subtract fractions.
Adding and Subtracting Fractions
Learning Target
Add. Write the answer in simplest form.
Adding or Subtracting Fractions with Like Denominators
A. 58
+ 18
58
+ 18
= 5 + 18
Add the numerators and keepthe denominator.
= 68
= 34 Simplify.
Add. Write the answer in simplest form.
Adding or Subtracting Fractions with Like Denominators
A. 79
+ 69
79
+ 69
= 7+69
Add the numerators and keepthe denominator.
= 139 Simplify if necessary.
To add or subtract fractions with different denominators, you must rewrite the fractions with a common denominator
Two Ways to Find a Common Denominator
• Find the LCM (least common multiple)
of the denominators.• Multiply the denominators.
Course 2
Adding and Subtracting Fractions
Add. Write the answer in simplest form.
Adding and Subtracting Fractions with Unlike Denominators
56
+ 78
+
5 · 46 · 4
The LCM of the denominator is 24.
2024
2124
Write equivalent fractions usingthe common denominator.
4124
Add the numerators. Simplify if necessary
It is not necessary to change an improper fraction to a mixed number.
7 · 38 · 3
Add. Write the answer in simplest form.
Adding and Subtracting Fractions with Unlike Denominators
38 +
25
3 · 58 · 5
The LCM of the denominator is 72
1540
1640
Write equivalent fractions usingthe common denominator.
3140
Add the numerators. Simplify if necessary
2 · 85· 8
+
Subtract. Write the answer in simplest form.
Adding and Subtracting Fractions with Unlike Denominators
34
23
3· 34· 3
The LCM of the denominator is 12
912
812
Write equivalent fractions usingthe common denominator.
112
Add the numerators. Simplify if necessary
2 · 43 · 4
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