Question

как решить :4/15 + 2/5 + 7/10

Answer 1

8/30+12/30+21/30=41/30

Answer 2

$\frac{4}{15} + \frac{2}{5} + \frac{7}{10} = \frac{4 \times 2 + 2 \times 6 + 7 \times 3}{30} =$

$\frac{8 + 12 + 21}{30} = \frac{41}{30} = 1 \frac{11}{30}$