Trang chủ » Hỏi đáp » Môn Toán 1, 5/4 + 1/2 + -7/12 2, -5/8 – 1/3 + -7/6 29/03/2025 1, 5/4 + 1/2 + -7/12 2, -5/8 – 1/3 + -7/6
1, 5/4+1/2+-7/12 = 15/12+6/12-7/12 = (15+6-7)/12 = 14/12 = 7/6 2, -5/8-1/3+-7/6 = -15/24-8/24-28/24 = (-15-8-28)/24 = -51/24 = -17/8 Trả lời
1) 5/4 + 1/2 + (-7/12) = 5/4 + 2/4 – 7/12 = 7/4 – 7/12 = 21/12 – 7/12 = (21 – 7)/12 = 14/12 = 7/6 2) -5/8 – 1/3 + (-7/6) = -15/24 – 8/24 – 7/6 = -23/24 – 7/6 = -23/24 – 28/24 = (-23 – 28)/24 = -51/24 = -17/8 Trả lời
2 bình luận về “1, 5/4 + 1/2 + -7/12 2, -5/8 – 1/3 + -7/6”