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Add 70/84 and 9/45

70/84 + 9/45 is 31/30.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 45 is 1260
  2. For the 1st fraction, since 84 × 15 = 1260,
    70/84 = 70 × 15/84 × 15 = 1050/1260
  3. Likewise, for the 2nd fraction, since 45 × 28 = 1260,
    9/45 = 9 × 28/45 × 28 = 252/1260
  4. Add the two fractions:
    1050/1260 + 252/1260 = 1050 + 252/1260 = 1302/1260
  5. 1302/1260 simplified gives 31/30
  6. So, 70/84 + 9/45 = 31/30
    In mixed form: 11/30

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