Question

Dau coroana mă ajutaţi ex 5

Answer 1

[(-1/6)×6+2×6+4,3×4]/(6+5+4)=
=(-1+12+17,2)/15=
=28,2/15=1,88

[7,5×10+6×7+8×2+3 1/4 × 8)]/(10+7+2+8)=
=[75+42+16+13/4 × 8)]/27=
=[75+58+13×2)]/27=
=(133+26)/27=
=159/27=
=159/27=
=53/9=5,(8)