{
  "name": "Add and Subtract Fractions",
  "order": 11,
  "challenges": [
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      "title": "Add Fractions with Common Denominators",
      "description": [
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      "challengeSeed": [
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      "tests": [
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    {
      "id": "59a5801209a6acac59836370",
      "title": "Subtract Fractions with Common Denominators",
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      "tests": [
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    },
    {
      "id": "59a5801209a6acac59836371",
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    {
      "id": "59a5801209a6acac59836372",
      "title": "Add and Subtract Fractions with Common Denominators Word Problems",
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      "description": [
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      "challengeSeed": [
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      "tests": [
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    {
      "id": "59a5801209a6acac59836374",
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      "tests": [
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    }
  ]
}