Question

49/8+5/2-51/10 Simplify ​

Answer 1

Solution:

    $\frac{49}{8}+\frac{5}{2}-\frac{51}{10}\\\\LCM=40\\\\=\frac{49X5}{8X5}+\frac{5X20}{2X20}-\frac{51X4}{10X4}\\\\=\frac{245}{40} +\frac{100}{40} -\frac{204}{40} \\\\=\frac{245+100-204}{40}\\\\=\frac{141}{40} \\\\=3.52$