Toán Lớp 7: a, 1,5 + 7/10 - |-3/4| b, 3.5 - |-2/7|

$ text{a) 1,5+}$ 7/10$ text{-}$|-3/4| $ text{=}$3/2+7/10-3/4 $ text{=}$29/20 $ text{b)3.5-}$|-2/7| $ text{=15-}$2/7 $ text{=}$103/7

a) 1,5 + 7/10 - |-3/4| = 3/2 + 7/10 - 3/4 = 30/20 + 14/20 - 15/20 = 29/20 b) 3 . 5 - |-2/7| = 15 - 2/7 = 105/7 - 2/7 = 103/7

Toán Lớp 7: a, 1,5 + 7/10 - |-3/4| b, 3.5

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