Question

Calculati:11pe langa 1 supra 3:4supra 21:4 pe langa 1 supra 4-7 pe langa 1 supra 8:4 pe lângă 3 supra 4×8

Answer 1

11 1/3 : 4/21:4 1/4-7  1/8:4 3/4×8 =
=34/3 ×21/4 × 4/17-57/8 ×4/19 ×8 =
=2×7-3/2×8 =
=14-12 =2

Answer 2

= 34/3 x 21/4 x4/17 - 57/8 x 4/19 x 8

= 17x 7/2 x 4/17 - 3/2 x 8
= 17 x 7/2 x 4/17 - 24/2

= 1x 7x 2 - 12
= 14-12
= 2