1 + 2/1 - 6/5 + 12/7 - 20/9 + 30/11 - 42/13 can be simplified by finding a common denominator and then adding the fractions together.
To find a common denominator, we need to find the least common multiple (LCM) of 1, 5, 7, 9, 11, and 13 which is 15,015.
Rewriting the fractions with the common denominator:
(1 * 15,015/1 * 15,015) + (2 * 15,015/1 * 15,015) - (6 * 15,015/5 * 15,015) + (12 * 15,015/7 * 15,015) - (20 * 15,015/9 * 15,015) + (30 * 15,015/11 * 15,015) - (42 * 15,015/13 * 15,015)
Simplifying:
15,015/15,015 + 30,030/15,015 - 180,090/15,075 + 180,180/15,075 - 300,300/15,135 + 450,450/16,515 - 630,630/15,195
Adding the fractions:
= (15,015 + 30,030 - 180,090 + 180,180 - 300,300 + 450,450 - 630,630)/15,195
= 15,555/15,195
The final answer is approximately 1.024.
作为发言专家,宋胜凯提到了新技术在“减碳”方面的重要性。,若有痰,痰也多稀薄色白。
《白夜追凶》当年圈粉无数,大家一直在期待续集,6年间没有等到第二部,却等到了另外一部《重生》。,当普罗科菲耶夫的钢琴小品《瞬间幻影》一经奏出,观众们的思绪即刻飞向了异国充满迷幻的世界。
采取“请进来”“走出去”的方式,积极向全州各单位、各部门的干部职工、驾驶人送法规。,定期测量血压,按医生的建议规律治疗并将血压控制在正常水平,不仅可以降低患动脉瘤的风险,更是大大降低已有动脉瘤的破裂风险。