(5.87+1又5/14+2.13+9/14)×(2又3/4-1.75)+(1÷2/7-3.5)×3.99简算

(5.87+1又5/14+2.13+9/14)×(2又3/4-1.75)+(1÷2/7-3.5)×3.99简算
(5.87+1又5/14+2.13+9/14)×(2又3/4-1.75)+(1÷2/7-3.5)×3.99简算

(5.87+1又5/14+2.13+9/14)×(2又3/4-1.75)+(1÷2/7-3.5)×3.99简算
(5.87+1又5/14+2.13+9/14)×(2又3/4-1.75)+(1÷2/7-3.5)×3.99
=(5.87+2.13+1+5/14+9/14)×(2.75-1.75)+(1x7/2-3.5)×3.99
=(8+1+14/14)x1+0
=10