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Add 70/72 and 7/28

70/72 + 7/28 is 11/9.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 28 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 72 × 7 = 504,
    70/72 = 70 × 7/72 × 7 = 490/504
  3. Likewise, for the 2nd fraction, since 28 × 18 = 504,
    7/28 = 7 × 18/28 × 18 = 126/504
  4. Add the two like fractions:
    490/504 + 126/504 = 490 + 126/504 = 616/504
  5. 616/504 simplified gives 11/9
  6. So, 70/72 + 7/28 = 11/9
    In mixed form: 12/9

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