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Rút gọn rồi tính. 10/24 + 1/12

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Giải VBT Toán lớp 4 Bài 62: Luyện tập chung

a) $\frac{10}{24} + \frac{1}{12} = \frac{5}{12} + \frac{1}{12} = \frac{6}{12} = \frac{1}{2}$

c) $\frac{3}{7} - \frac{6}{21} = \frac{3}{7} - \frac{2}{7} = \frac{1}{7}$

b) $\frac{15}{18} - \frac{1}{6} = \frac{5}{6} - \frac{1}{6} = \frac{4}{6} = \frac{2}{3}$

d) $\frac{2}{3} + \frac{5}{15} = \frac{2}{3} + \frac{1}{3} = \frac{3}{3} = 1$

a) $\frac{10}{24} + \frac{1}{12} = \frac{5}{12} + \frac{1}{12} = \frac{6}{12} = \frac{1}{2}$

c) $\frac{3}{7} - \frac{6}{21} = \frac{3}{7} - \frac{2}{7} = \frac{1}{7}$

b) $\frac{15}{18} - \frac{1}{6} = \frac{5}{6} - \frac{1}{6} = \frac{4}{6} = \frac{2}{3}$

d) $\frac{2}{3} + \frac{5}{15} = \frac{2}{3} + \frac{1}{3} = \frac{3}{3} = 1$