Toán Lớp 7: a, 1$\frac{1}{8}$ – ( $\frac{1}{15}$ – $\frac{1}{2}$ +$\frac{-1}{6}$ )+ /$\frac{5}{4}$ -$\frac{3}{2}$ / b / 2$\frac{1}{4}$ – 5$\frac{3}

Toán Lớp 7: a, 1$\frac{1}{8}$ – ( $\frac{1}{15}$ – $\frac{1}{2}$ +$\frac{-1}{6}$ )+ /$\frac{5}{4}$ -$\frac{3}{2}$ /
b / 2$\frac{1}{4}$ – 5$\frac{3}{2}$ / – ( $\frac{3}{10}$ – 1) – 5 $\frac{1}{2}$ + ( $\frac{1}{3}$ – $\frac{5}{6}$ )
c, ( $\frac{-5}{12}$ + $\frac{7}{4}$ – $\frac{3}{8}$ ) – /4$\frac{1}{2}$ – 7$\frac{1}{3}$ / – ( $\frac{1}{4}$ – $\frac{5}{2}$ )