{
  "problem": "$-\\dfrac{3}{6} - \\dfrac{5}{10} = {?}$",
  "hints": [
    "$ = - {\\dfrac{3 \\times 5}{6 \\times 5}} - {\\dfrac{5 \\times 3}{10 \\times 3}} $",
    "$ = - {\\dfrac{15}{30}} - {\\dfrac{15}{30}} $",
    "$ = - \\dfrac{{15} - {15}}{30} $",
    "$ = -\\dfrac{30}{30}$"
  ]
}
{'source': 'AMPS', 'file': 'amps/khan/492/1608189639.json'}