Question

$4\frac{2}{3} - 6\frac{3}{7} - (-1\frac{2}{9} ) + 5\frac{10}{21}$
Срочно!

Answer 1

Объяснение:

4 2/3-6 3/7-(-1 2/9)+5 10/21=4 59/63

1) 4 2/3-6 3/7= (4-6)+(14/21-9/21)=

= -2+5/21= -1 21/21+5/21= -1 16/21

2) -1 16/21-(-1 2/9)= -1 16/21+1 2/9=

=(-1+1)+(-48/63+14/63)=0+(-34/63)=

= -34/63

3) -34/63+5 10/21= -34/63+5 30/63=

= -34/63+4 93/63=4 59/63