Question

1 1/13 •( 2 3/8 -1 5/6) • 2 2/5 +9/10
ПОМОГИТЕ ​

Answer 1

ниже

11/13(2 3/8-1 5/6)×2 2/5 +9/10=11/13×1 18-40/48×2 2/5 +9/10=11/13×1 -28/48×2 2/5 +9/10=

11/13×-1 7/12×2 2/5+9/10=- 11×19/13×12 ×2 2/5+9/10

=209/156×12/5+9/10=209×12/156×5+9/10=

209×3/39×5+9/10=627/195+9./10=3 42/195+9/10=

3 13/65+9/10=3 130+185/650=315/650=63/130