To simplify the expression 12 8/15 - 7 + 715 + 15, we first convert the mixed number 12 8/15 to an improper fraction:
12 8/15 = (12 * 15 + 8)/15 = 188/15
Now we can compute the expression:
188/15 - 7 + 715 + 15 = 188/15 - 7 + 715/1 + 15/1
To combine the fractions, we need to find a common denominator. The least common multiple of 15, 1, and 1 is 15. Therefore, we rewrite the fractions with a denominator of 15:
188/15 - 7 + 715/1 + 15/1 = (188 * 1)/15 - (7 * 15)/15 + (715 * 15)/15 + (15 * 15)/15
= 188/15 - 105/15 + 10725/15 + 225/15
Now that we have a common denominator, we can combine the fractions:
188/15 - 105/15 + 10725/15 + 225/15 = (188 - 105 + 10725 + 225)/15
= 19833/15
Finally, we can simplify the fraction by finding the greatest common divisor of the numerator and the denominator, which is 3:
19833/15 = 6611/5
Therefore, the simplified answer is 6611/5.
What is 12 8/15-7+715+15 simplify your answer
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