Question

a) 1-5/8 = e b) 1-3/10= por favor me ajudem

Answer 1

$a)~~1- \dfrac{5}{8} \to~~mmc=8\to~~ \dfrac{8-5}{8} \to~~\large\boxed{ \frac{3}{8} }\\\\\\\\ b)~~1- \dfrac{3}{10} \to~~mmc=10\to~~ \dfrac{10-3}{10} \to~~\large\boxed{ \frac{7}{10} }$