add fraction
When adding fractions, the first step is to make sure the denominators (the bottom numbers) are the same.
For example, let’s say we want to add 1/4 and 3/8.
Step 1: Find a common denominator.
The multiples of 4 are: 4, 8, 12, 16, 20, 24, …
The multiples of 8 are: 8, 16, 24, 32, …
The smallest multiple they have in common is 8.
Step 2: Rewrite each fraction using the common denominator.
1/4 can be rewritten as 2/8 (multiply the numerator and denominator by 2).
3/8 stays the same because the denominator is already 8.
Step 3: Add the fractions by adding the numerators and keeping the denominator the same.
2/8 + 3/8 = 5/8
So, 1/4 + 3/8 = 5/8.
I hope that helps! Let me know if you have any other questions.
substraction fraction
When subtracting fractions, the first step is also to make sure the denominators (the bottom numbers) are the same.
For example, let’s say we want to subtract 1/3 from 2/3.
Step 1: Find a common denominator.
The least common multiple (LCM) of 3 is 3.
Step 2: Rewrite each fraction using the common denominator.
2/3 stays the same because the denominator is already 3.
1/3 can be rewritten as 1/3 * 3/3 = 3/9 (multiply the numerator and denominator by 3).
Step 3: Subtract the fractions by subtracting the numerators and keeping the denominator the same.
2/3 – 3/9 = 6/9 – 3/9 = 3/9
Step 4: Simplify the fraction, if possible.
3/9 can be simplified by dividing the numerator and denominator by their greatest common factor (GCF), which is 3.
3/9 ÷ 3/3 = 1/3
So, 2/3 – 1/3 = 1/3.