Answer:
Explanation:
Cancel out the second fraction because 7 is a multiple of 21.
1/7 + 1/7
Write the duplicate numerstors above the denominator
1+1/7
Add
1+1/7 = 2/7
Answer: 1/7 + 3/21 = 6/21
1. Convert 1/7 to have a denominator of 21. 7 * 3 = 21
2. Multiply the numerator with the same number. 1 * 3 = 3
3. Add the new fraction straight across the top, leaving the bottom the same.
1/7 + 3/21 = 6/21
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