Answer:
To find the sum of the mixed numbers 1 1/4 and 2 1/7, you can follow these steps:
Step 1: Add the whole numbers together:
1 + 2 = 3
Step 2: Add the fractions together. To do this, you need to make sure the fractions have a common denominator, which in this case is 28 (the least common multiple of 4 and 7):
1/4 = 7/28 (multiplied by 7/7 to have the denominator of 28)
1/7 = 4/28 (multiplied by 4/4 to have the denominator of 28)
Now, you can add the fractions:
7/28 + 4/28 = 11/28
Step 3: Combine the whole number and the fraction:
3 + 11/28
So, the sum of 1 1/4 and 2 1/7 as a simplified mixed number is:
3 11/28
Explanation: