Question

2 1/4 - (- 4 1/5) =????????????

Answer 1

$2 \frac{1}{4} - ( - 4 \frac{1}{5} ) = 2 \frac{1}{4} + 4 \frac{1}{5} = \\ 2 \frac{5}{20} + 4 \frac{4}{20} = 6 \frac{9}{20} = 6.45$