Fill in the blank.
313 + 312 + 214 = _____
To add fractions, if the denominators are different, find the first common multiple.
Use the first common multiple as the denominator.
Multiples of 3: 3, 6, 9, 12
Multiples of 2: 2, 4, 6, 8, 10, 12
Multiples of 4: 2, 4, 6, 8, 10, 12
First common multiple: 12
313 + 312 + 214
= 3412 + 3612 + 2312
= 84 + 6 + 312
= 81312
= 9112 (Check if the fraction can be reduced to the simplest form.)
Answer(s): 9112
