Question

15целых 2/10-10целых 9/10помогите

Answer 1

$15 frac{2}{10} -10 frac{9}{10} = frac{152}{10} - frac{109}{10} = frac{43}{10} =4 frac{3}{10} =4,3$

Answer 2

15.2-10.9=5.2-0.9=4.3