Question

2/3(1 1/2х+3/5)-4/5(5/12х-1/2)=1 3/5

Answer 1

22/3x+6/15-20/60x+4/10=13/5
22/3x-20/60x=13/5-6/15/-4/10
440/60x-20/60x=78/30-12/30-12/30
420/60x=54/30
x=2 целых одна седьмая